101220102021210 has 64 divisors (see below), whose sum is σ = 255732386457600. Its totient is φ = 25569549744192.

The previous prime is 101220102021167. The next prime is 101220102021307. The reversal of 101220102021210 is 12120201022101.

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 101220102021210.

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, 1513627 + ... + 14308433.

It is an arithmetic number, because the mean of its divisors is an integer number (3995818538400).

Almost surely, 2^{101220102021210} is an apocalyptic number.

101220102021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220102021210 is an abundant number, since it is smaller than the sum of its proper divisors (154512284436390).

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

101220102021210 is a wasteful number, since it uses less digits than its factorization.

101220102021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808715.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101220102021210 its reverse (12120201022101), we get a palindrome (113340303043311).

The spelling of 101220102021210 in words is "one hundred one trillion, two hundred twenty billion, one hundred two million, twenty-one thousand, two hundred ten".