32021111992 has 8 divisors (see below), whose sum is σ = 60039585000. Its totient is φ = 16010555992.

The previous prime is 32021111959. The next prime is 32021111999. The reversal of 32021111992 is 29911112023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×32021111992² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32021111999) 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 as a sum of consecutive naturals, namely, 2001319492 + ... + 2001319507.

It is an arithmetic number, because the mean of its divisors is an integer number (7504948125).

Almost surely, 2^32021111992 is an apocalyptic number.

It is an amenable number.

32021111992 is a deficient number, since it is larger than the sum of its proper divisors (28018473008).

32021111992 is a wasteful number, since it uses less digits than its factorization.

32021111992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002639005 (or 4002639001 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

Adding to 32021111992 its sum of digits (31), we get a palindrome (32021112023).

The spelling of 32021111992 in words is "thirty-two billion, twenty-one million, one hundred eleven thousand, nine hundred ninety-two".