20202332121 has 16 divisors (see below), whose sum is σ = 30039832320. Its totient is φ = 13418518320.

The previous prime is 20202332107. The next prime is 20202332159. The reversal of 20202332121 is 12123320202.

It is not a de Polignac number, because 20202332121 - 2¹⁴ = 20202315737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20202332094 and 20202332103.

It is not an unprimeable number, because it can be changed into a prime (20202332021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373190 + ... + 1387823.

It is an arithmetic number, because the mean of its divisors is an integer number (1877489520).

Almost surely, 2^20202332121 is an apocalyptic number.

It is an amenable number.

20202332121 is a deficient number, since it is larger than the sum of its proper divisors (9837500199).

20202332121 is a wasteful number, since it uses less digits than its factorization.

20202332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761293 (or 2761287 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20202332121 its reverse (12123320202), we get a palindrome (32325652323).

The spelling of 20202332121 in words is "twenty billion, two hundred two million, three hundred thirty-two thousand, one hundred twenty-one".