22086212 has 6 divisors (see below), whose sum is σ = 38650878. Its totient is φ = 11043104.

The previous prime is 22086199. The next prime is 22086241. The reversal of 22086212 is 21268022.

It can be written as a sum of positive squares in only one way, i.e., 17859076 + 4227136 = 4226^2 + 2056^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760773 + ... + 2760780.

It is an arithmetic number, because the mean of its divisors is an integer number (6441813).

Almost surely, 2^22086212 is an apocalyptic number.

It is an amenable number.

22086212 is a deficient number, since it is larger than the sum of its proper divisors (16564666).

22086212 is a wasteful number, since it uses less digits than its factorization.

22086212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521557 (or 5521555 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 22086212 is about 4699.5970039994. The cubic root of 22086212 is about 280.5694702651.

The spelling of 22086212 in words is "twenty-two million, eighty-six thousand, two hundred twelve".