102121121012010 has 16 divisors (see below), whose sum is σ = 245090690428896. Its totient is φ = 27232298936528.

The previous prime is 102121121011909. The next prime is 102121121012039. The reversal of 102121121012010 is 10210121121201.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1702018683504 + ... + 1702018683563.

It is an arithmetic number, because the mean of its divisors is an integer number (15318168151806).

Almost surely, 2^{102121121012010} is an apocalyptic number.

102121121012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121121012010 is an abundant number, since it is smaller than the sum of its proper divisors (142969569416886).

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

102121121012010 is a wasteful number, since it uses less digits than its factorization.

102121121012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404037367077.

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

Adding to 102121121012010 its reverse (10210121121201), we get a palindrome (112331242133211).

The spelling of 102121121012010 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, ten".