20202122332121 has 16 divisors (see below), whose sum is σ = 20621338243968. Its totient is φ = 19788029913600.

The previous prime is 20202122332109. The next prime is 20202122332157. The reversal of 20202122332121 is 12123322120202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20202122332121 - 2¹⁸ = 20202122069977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202122332321) 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, 2608556 + ... + 6870866.

It is an arithmetic number, because the mean of its divisors is an integer number (1288833640248).

Almost surely, 2^{20202122332121} is an apocalyptic number.

It is an amenable number.

20202122332121 is a deficient number, since it is larger than the sum of its proper divisors (419215911847).

20202122332121 is a wasteful number, since it uses less digits than its factorization.

20202122332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262912.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20202122332121 its reverse (12123322120202), we get a palindrome (32325444452323).

The spelling of 20202122332121 in words is "twenty trillion, two hundred two billion, one hundred twenty-two million, three hundred thirty-two thousand, one hundred twenty-one".