20212232 has 8 divisors (see below), whose sum is σ = 37897950. Its totient is φ = 10106112.

The previous prime is 20212223. The next prime is 20212259. The reversal of 20212232 is 23221202.

It can be written as a sum of positive squares in only one way, i.e., 17859076 + 2353156 = 4226^2 + 1534^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263257 + ... + 1263272.

Almost surely, 2^20212232 is an apocalyptic number.

It is an amenable number.

20212232 is a deficient number, since it is larger than the sum of its proper divisors (17685718).

20212232 is a wasteful number, since it uses less digits than its factorization.

20212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526535 (or 2526531 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20212232 is about 4495.8015970458. The cubic root of 20212232 is about 272.3985291195.

Adding to 20212232 its reverse (23221202), we get a palindrome (43433434).

The spelling of 20212232 in words is "twenty million, two hundred twelve thousand, two hundred thirty-two".