22132312 has 8 divisors (see below), whose sum is σ = 41498100. Its totient is φ = 11066152.

The previous prime is 22132309. The next prime is 22132339. The reversal of 22132312 is 21323122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383262 + ... + 1383277.

Almost surely, 2^22132312 is an apocalyptic number.

It is an amenable number.

22132312 is a deficient number, since it is larger than the sum of its proper divisors (19365788).

22132312 is a wasteful number, since it uses less digits than its factorization.

22132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766545 (or 2766541 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 22132312 is about 4704.4991231799. The cubic root of 22132312 is about 280.7645431593.

Adding to 22132312 its reverse (21323122), we get a palindrome (43455434).

It can be divided in two parts, 2 and 2132312, that multiplied together give a palindrome (4264624).

The spelling of 22132312 in words is "twenty-two million, one hundred thirty-two thousand, three hundred twelve".