102110012121020 has 96 divisors (see below), whose sum is σ = 216961252885440. Its totient is φ = 40363627673600.

The previous prime is 102110012120989. The next prime is 102110012121023. The reversal of 102110012121020 is 20121210011201.

It is a junction number, because it is equal to n+sod(n) for n = 102110012120986 and 102110012121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110012121023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3632630726 + ... + 3632658834.

It is an arithmetic number, because the mean of its divisors is an integer number (2260013050890).

Almost surely, 2^{102110012121020} is an apocalyptic number.

102110012121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110012121020 is an abundant number, since it is smaller than the sum of its proper divisors (114851240764420).

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

102110012121020 is a wasteful number, since it uses less digits than its factorization.

102110012121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31535 (or 31533 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102110012121020 its reverse (20121210011201), we get a palindrome (122231222132221).

The spelling of 102110012121020 in words is "one hundred two trillion, one hundred ten billion, twelve million, one hundred twenty-one thousand, twenty".