102011212013021 has 8 divisors (see below), whose sum is σ = 108102714161400. Its totient is φ = 96091301474560.

The previous prime is 102011212012999. The next prime is 102011212013047. The reversal of 102011212013021 is 120310212110201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1442184828100 + 100569027184921 = 1200910^2 + 10028411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102011212013021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011212019021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42897901256 + ... + 42897903633.

It is an arithmetic number, because the mean of its divisors is an integer number (13512839270175).

Almost surely, 2^{102011212013021} is an apocalyptic number.

It is an amenable number.

102011212013021 is a deficient number, since it is larger than the sum of its proper divisors (6091502148379).

102011212013021 is an equidigital number, since it uses as much as digits as its factorization.

102011212013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85795804959.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102011212013021 its reverse (120310212110201), we get a palindrome (222321424123222).

The spelling of 102011212013021 in words is "one hundred two trillion, eleven billion, two hundred twelve million, thirteen thousand, twenty-one".