102121211110110 has 64 divisors (see below), whose sum is σ = 245982204000000. Its totient is φ = 27133397770752.

The previous prime is 102121211110097. The next prime is 102121211110133. The reversal of 102121211110110 is 11011112121201.

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 102121211110110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11785641 + ... + 18524139.

It is an arithmetic number, because the mean of its divisors is an integer number (3843471937500).

Almost surely, 2^{102121211110110} is an apocalyptic number.

102121211110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121211110110 is an abundant number, since it is smaller than the sum of its proper divisors (143860992889890).

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

102121211110110 is a wasteful number, since it uses less digits than its factorization.

102121211110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740345.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102121211110110 its reverse (11011112121201), we get a palindrome (113132323231311).

The spelling of 102121211110110 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred ten thousand, one hundred ten".