102110021121210 has 32 divisors (see below), whose sum is σ = 245064318063552. Its totient is φ = 27229309257600.

The previous prime is 102110021121209. The next prime is 102110021121211. The reversal of 102110021121210 is 12121120011201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102110021121209) and next prime (102110021121211).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102110021121210.

It is not an unprimeable number, because it can be changed into a prime (102110021121211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48386110 + ... + 50452310.

It is an arithmetic number, because the mean of its divisors is an integer number (7658259939486).

Almost surely, 2^{102110021121210} is an apocalyptic number.

102110021121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102110021121210 is an abundant number, since it is smaller than the sum of its proper divisors (142954296942342).

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

102110021121210 is a wasteful number, since it uses less digits than its factorization.

102110021121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713518.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102110021121210 its reverse (12121120011201), we get a palindrome (114231141132411).

The spelling of 102110021121210 in words is "one hundred two trillion, one hundred ten billion, twenty-one million, one hundred twenty-one thousand, two hundred ten".