102020112012021 has 16 divisors (see below), whose sum is σ = 156020442927744. Its totient is φ = 58086747630144.

The previous prime is 102020112011969. The next prime is 102020112012047. The reversal of 102020112012021 is 120210211020201.

It is not a de Polignac number, because 102020112012021 - 2⁶ = 102020112011957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020112012421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8769128790 + ... + 8769140423.

It is an arithmetic number, because the mean of its divisors is an integer number (9751277682984).

Almost surely, 2^{102020112012021} is an apocalyptic number.

It is an amenable number.

102020112012021 is a deficient number, since it is larger than the sum of its proper divisors (54000330915723).

102020112012021 is a wasteful number, since it uses less digits than its factorization.

102020112012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17538269500.

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

Adding to 102020112012021 its reverse (120210211020201), we get a palindrome (222230323032222).

The spelling of 102020112012021 in words is "one hundred two trillion, twenty billion, one hundred twelve million, twelve thousand, twenty-one".