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102211200221020 = 22511464596364641
BaseRepresentation
bin10111001111010111100110…
…010001111111111101011100
3111101220021222021122020120221
4113033113212101333331130
5101344112014224033040
61001215102133251124
730346341552665032
oct2717274621777534
9441807867566527
10102211200221020
112a62758797aa70
12b569270193aa4
1345056232578a7
141b35097092552
15bc3b3416074a
hex5cf5e647ff5c

102211200221020 has 24 divisors (see below), whose sum is σ = 234156567779568. Its totient is φ = 37167709171200.

The previous prime is 102211200221017. The next prime is 102211200221027. The reversal of 102211200221020 is 20122002112201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102211200220985 and 102211200221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211200221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232298182101 + ... + 232298182540.

It is an arithmetic number, because the mean of its divisors is an integer number (9756523657482).

Almost surely, 2102211200221020 is an apocalyptic number.

102211200221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102211200221020 is an abundant number, since it is smaller than the sum of its proper divisors (131945367558548).

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

102211200221020 is a wasteful number, since it uses less digits than its factorization.

102211200221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464596364661 (or 464596364659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102211200221020 its reverse (20122002112201), we get a palindrome (122333202333221).

The spelling of 102211200221020 in words is "one hundred two trillion, two hundred eleven billion, two hundred million, two hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 464596364641 929192729282 1858385458564 2322981823205 4645963646410 5110560011051 9291927292820 10221120022102 20442240044204 25552800055255 51105600110510 102211200221020