20032232121 has 32 divisors (see below), whose sum is σ = 32401175040. Its totient is φ = 12131053200.

The previous prime is 20032232111. The next prime is 20032232141. The reversal of 20032232121 is 12123223002.

20032232121 is a `hidden beast` number, since 2 + 0 + 0 + 322 + 321 + 21 = 666.

It is not a de Polignac number, because 20032232121 - 2⁷ = 20032231993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20032232094 and 20032232103.

It is not an unprimeable number, because it can be changed into a prime (20032232111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354766 + ... + 407336.

It is an arithmetic number, because the mean of its divisors is an integer number (1012536720).

Almost surely, 2^20032232121 is an apocalyptic number.

It is an amenable number.

20032232121 is a deficient number, since it is larger than the sum of its proper divisors (12368942919).

20032232121 is a wasteful number, since it uses less digits than its factorization.

20032232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53874 (or 53868 counting only the distinct ones).

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

Adding to 20032232121 its reverse (12123223002), we get a palindrome (32155455123).

The spelling of 20032232121 in words is "twenty billion, thirty-two million, two hundred thirty-two thousand, one hundred twenty-one".