102021212101110 has 32 divisors (see below), whose sum is σ = 244856641368672. Its totient is φ = 27205019635200.

The previous prime is 102021212101091. The next prime is 102021212101181. The reversal of 102021212101110 is 11101212120201.

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 102021212101110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38504341 + ... + 41068560.

It is an arithmetic number, because the mean of its divisors is an integer number (7651770042771).

Almost surely, 2^{102021212101110} is an apocalyptic number.

102021212101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021212101110 is an abundant number, since it is smaller than the sum of its proper divisors (142835429267562).

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

102021212101110 is a wasteful number, since it uses less digits than its factorization.

102021212101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79615648.

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

Adding to 102021212101110 its reverse (11101212120201), we get a palindrome (113122424221311).

The spelling of 102021212101110 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred one thousand, one hundred ten".