22031432132 has 12 divisors (see below), whose sum is σ = 40822947900. Its totient is φ = 10367732736.

The previous prime is 22031432099. The next prime is 22031432161. The reversal of 22031432132 is 23123413022.

It can be written as a sum of positive squares in 2 ways, for example, as 10004800576 + 12026631556 = 100024^2 + 109666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22031432098 and 22031432107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161995757 + ... + 161995892.

It is an arithmetic number, because the mean of its divisors is an integer number (3401912325).

Almost surely, 2^22031432132 is an apocalyptic number.

It is an amenable number.

22031432132 is a deficient number, since it is larger than the sum of its proper divisors (18791515768).

22031432132 is a wasteful number, since it uses less digits than its factorization.

22031432132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323991670 (or 323991668 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22031432132 its reverse (23123413022), we get a palindrome (45154845154).

The spelling of 22031432132 in words is "twenty-two billion, thirty-one million, four hundred thirty-two thousand, one hundred thirty-two".