102212121011010 has 64 divisors (see below), whose sum is σ = 259749749814912. Its totient is φ = 25652180151296.

The previous prime is 102212121010933. The next prime is 102212121011017. The reversal of 102212121011010 is 10110121212201.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (102212121011017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8280769 + ... + 16522571.

It is an arithmetic number, because the mean of its divisors is an integer number (4058589840858).

Almost surely, 2^{102212121011010} is an apocalyptic number.

102212121011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102212121011010 is an abundant number, since it is smaller than the sum of its proper divisors (157537628803902).

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

102212121011010 is a wasteful number, since it uses less digits than its factorization.

102212121011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266147.

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

Adding to 102212121011010 its reverse (10110121212201), we get a palindrome (112322242223211).

The spelling of 102212121011010 in words is "one hundred two trillion, two hundred twelve billion, one hundred twenty-one million, eleven thousand, ten".