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102220010220 = 223543792412081
BaseRepresentation
bin101111100110011001…
…0011001001011101100
3100202211212222112202110
41133030302121023230
53133321310311340
6114543105324020
710246051515336
oct1371462311354
9322755875673
10102220010220
113a395592699
1217989336610
139840729063
144d39c2a456
1529d40aa680
hex17ccc992ec

102220010220 has 192 divisors, whose sum is σ = 297953187840. Its totient is φ = 26166067200.

The previous prime is 102220010197. The next prime is 102220010227. The reversal of 102220010220 is 22010022201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102220010196 and 102220010205.

It is not an unprimeable number, because it can be changed into a prime (102220010227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49119580 + ... + 49121660.

It is an arithmetic number, because the mean of its divisors is an integer number (1551839520).

Almost surely, 2102220010220 is an apocalyptic number.

102220010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102220010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148976593920).

102220010220 is an abundant number, since it is smaller than the sum of its proper divisors (195733177620).

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

102220010220 is a wasteful number, since it uses less digits than its factorization.

102220010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 102220010220 its reverse (22010022201), we get a palindrome (124230032421).

The spelling of 102220010220 in words is "one hundred two billion, two hundred twenty million, ten thousand, two hundred twenty".