12011021032 has 8 divisors (see below), whose sum is σ = 22520664450. Its totient is φ = 6005510512.

The previous prime is 12011021027. The next prime is 12011021041. The reversal of 12011021032 is 23012011021.

It can be written as a sum of positive squares in only one way, i.e., 9728665956 + 2282355076 = 98634^2 + 47774^2 .

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

It is a super-2 number, since 2×12011021032² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750688807 + ... + 750688822.

Almost surely, 2^12011021032 is an apocalyptic number.

It is an amenable number.

12011021032 is a deficient number, since it is larger than the sum of its proper divisors (10509643418).

12011021032 is a wasteful number, since it uses less digits than its factorization.

12011021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501377635 (or 1501377631 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12011021032 its reverse (23012011021), we get a palindrome (35023032053).

The spelling of 12011021032 in words is "twelve billion, eleven million, twenty-one thousand, thirty-two".