220122212 has 6 divisors (see below), whose sum is σ = 385213878. Its totient is φ = 110061104.

The previous prime is 220122181. The next prime is 220122233. The reversal of 220122212 is 212221022.

220122212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 110166016 + 109956196 = 10496^2 + 10486^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515273 + ... + 27515280.

It is an arithmetic number, because the mean of its divisors is an integer number (64202313).

Almost surely, 2^220122212 is an apocalyptic number.

It is an amenable number.

220122212 is a deficient number, since it is larger than the sum of its proper divisors (165091666).

220122212 is a wasteful number, since it uses less digits than its factorization.

220122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55030557 (or 55030555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 220122212 is about 14836.5161678879. The cubic root of 220122212 is about 603.7928364287.

Adding to 220122212 its reverse (212221022), we get a palindrome (432343234).

The spelling of 220122212 in words is "two hundred twenty million, one hundred twenty-two thousand, two hundred twelve".