32112222021 has 24 divisors (see below), whose sum is σ = 50614817760. Its totient is φ = 19456668000.

The previous prime is 32112222001. The next prime is 32112222053. The reversal of 32112222021 is 12022221123.

32112222021 is a `hidden beast` number, since 321 + 122 + 220 + 2 + 1 = 666.

It is not a de Polignac number, because 32112222021 - 2⁵ = 32112221989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32112221985 and 32112222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32112222001) 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 23 ways as a sum of consecutive naturals, for example, 339135 + ... + 423363.

It is an arithmetic number, because the mean of its divisors is an integer number (2108950740).

Almost surely, 2^32112222021 is an apocalyptic number.

It is an amenable number.

32112222021 is a deficient number, since it is larger than the sum of its proper divisors (18502595739).

32112222021 is a wasteful number, since it uses less digits than its factorization.

32112222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88097 (or 88094 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 32112222021 its reverse (12022221123), we get a palindrome (44134443144).

The spelling of 32112222021 in words is "thirty-two billion, one hundred twelve million, two hundred twenty-two thousand, twenty-one".