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102102012210222 = 236107396520981
BaseRepresentation
bin10111001101110001111010…
…001010110010110000101110
3111101111212010210010121000000
4113031301322022302300232
5101340314410111211342
61001053003351245130
730335425021134033
oct2715617212626056
9441455123117000
10102102012210222
112a59524710a412
12b5500793797a6
1344c824204a98b
141b2da99a7938a
15bc0d934ac44c
hex5cdc7a2b2c2e

102102012210222 has 56 divisors (see below), whose sum is σ = 229645901763720. Its totient is φ = 34030829654640.

The previous prime is 102102012210221. The next prime is 102102012210229. The reversal of 102102012210222 is 222012210201201.

It is a happy number.

102102012210222 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 201 + 221 + 0 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102102012210195 and 102102012210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102012210221) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 12396972 + ... + 18917952.

Almost surely, 2102102012210222 is an apocalyptic number.

102102012210222 is an abundant number, since it is smaller than the sum of its proper divisors (127543889553498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102012210222 is an equidigital number, since it uses as much as digits as its factorization.

102102012210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6531740 (or 6531725 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102102012210222 its reverse (222012210201201), we get a palindrome (324114222411423).

The spelling of 102102012210222 in words is "one hundred two trillion, one hundred two billion, twelve million, two hundred ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 10739 21478 32217 64434 96651 193302 289953 579906 869859 1739718 2609577 5219154 6520981 7828731 13041962 15657462 19562943 39125886 58688829 117377658 176066487 352132974 528199461 1056398922 1584598383 3169196766 4753795149 9507590298 70028814959 140057629918 210086444877 420172889754 630259334631 1260518669262 1890778003893 3781556007786 5672334011679 11344668023358 17017002035037 34034004070074 51051006105111 102102012210222