102101020021210 has 64 divisors (see below), whose sum is σ = 213339859499520. Its totient is φ = 34457082992640.

The previous prime is 102101020021181. The next prime is 102101020021331. The reversal of 102101020021210 is 12120020101201.

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, 13581375 + ... + 19714354.

It is an arithmetic number, because the mean of its divisors is an integer number (3333435304680).

Almost surely, 2^{102101020021210} is an apocalyptic number.

102101020021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101020021210 is an abundant number, since it is smaller than the sum of its proper divisors (111238839478310).

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

102101020021210 is a wasteful number, since it uses less digits than its factorization.

102101020021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33296431.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102101020021210 its reverse (12120020101201), we get a palindrome (114221040122411).

The spelling of 102101020021210 in words is "one hundred two trillion, one hundred one billion, twenty million, twenty-one thousand, two hundred ten".