101210202012021 has 16 divisors (see below), whose sum is σ = 137493732009600. Its totient is φ = 66200081629760.

The previous prime is 101210202012011. The next prime is 101210202012061. The reversal of 101210202012021 is 120210202012101.

It is a cyclic number.

It is not a de Polignac number, because 101210202012021 - 2¹⁰ = 101210202010997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210202012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36633280 + ... + 39299078.

It is an arithmetic number, because the mean of its divisors is an integer number (8593358250600).

Almost surely, 2^{101210202012021} is an apocalyptic number.

It is an amenable number.

101210202012021 is a deficient number, since it is larger than the sum of its proper divisors (36283529997579).

101210202012021 is a wasteful number, since it uses less digits than its factorization.

101210202012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904636.

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

Adding to 101210202012021 its reverse (120210202012101), we get a palindrome (221420404024122).

The spelling of 101210202012021 in words is "one hundred one trillion, two hundred ten billion, two hundred two million, twelve thousand, twenty-one".