102021012211110 has 64 divisors (see below), whose sum is σ = 247604455756800. Its totient is φ = 26899607474432.

The previous prime is 102021012211091. The next prime is 102021012211127. The reversal of 102021012211110 is 11112210120201.

It is a happy number.

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 102021012211110.

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, 306934627 + ... + 307266833.

It is an arithmetic number, because the mean of its divisors is an integer number (3868819621200).

Almost surely, 2^{102021012211110} is an apocalyptic number.

102021012211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021012211110 is an abundant number, since it is smaller than the sum of its proper divisors (145583443545690).

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

102021012211110 is a wasteful number, since it uses less digits than its factorization.

102021012211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447325.

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

Adding to 102021012211110 its reverse (11112210120201), we get a palindrome (113133222331311).

The spelling of 102021012211110 in words is "one hundred two trillion, twenty-one billion, twelve million, two hundred eleven thousand, one hundred ten".