102112021211010 has 64 divisors (see below), whose sum is σ = 254067060257280. Its totient is φ = 26234127279360.

The previous prime is 102112021210937. The next prime is 102112021211089. The reversal of 102112021211010 is 10112120211201.

It is a happy number.

It is a super-2 number, since 2×102112021211010² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126346801 + ... + 127152420.

It is an arithmetic number, because the mean of its divisors is an integer number (3969797816520).

Almost surely, 2^{102112021211010} is an apocalyptic number.

102112021211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102112021211010 is an abundant number, since it is smaller than the sum of its proper divisors (151955039046270).

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

102112021211010 is a wasteful number, since it uses less digits than its factorization.

102112021211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253499723.

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

Adding to 102112021211010 its reverse (10112120211201), we get a palindrome (112224141422211).

The spelling of 102112021211010 in words is "one hundred two trillion, one hundred twelve billion, twenty-one million, two hundred eleven thousand, ten".