120202102201021 has 16 divisors (see below), whose sum is σ = 123669025732800. Its totient is φ = 116784037611648.

The previous prime is 120202102201019. The next prime is 120202102201033. The reversal of 120202102201021 is 120102201202021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120202102201021 - 2¹ = 120202102201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202102200986 and 120202102201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202102201061) 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, 6372475 + ... + 16763431.

It is an arithmetic number, because the mean of its divisors is an integer number (7729314108300).

Almost surely, 2^{120202102201021} is an apocalyptic number.

It is an amenable number.

120202102201021 is a deficient number, since it is larger than the sum of its proper divisors (3466923531779).

120202102201021 is a wasteful number, since it uses less digits than its factorization.

120202102201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10393308.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120202102201021 its reverse (120102201202021), we get a palindrome (240304303403042).

The spelling of 120202102201021 in words is "one hundred twenty trillion, two hundred two billion, one hundred two million, two hundred one thousand, twenty-one".