220927788212 has 12 divisors (see below), whose sum is σ = 386761679556. Its totient is φ = 110424451200.

The previous prime is 220927788203. The next prime is 220927788239. The reversal of 220927788212 is 212887729022.

It can be written as a sum of positive squares in 2 ways, for example, as 182932422436 + 37995365776 = 427706^2 + 194924^2 .

It is a congruent number.

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, 9848123 + ... + 9870530.

It is an arithmetic number, because the mean of its divisors is an integer number (32230139963).

Almost surely, 2^220927788212 is an apocalyptic number.

It is an amenable number.

220927788212 is a deficient number, since it is larger than the sum of its proper divisors (165833891344).

220927788212 is a wasteful number, since it uses less digits than its factorization.

220927788212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19721458 (or 19721456 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 220927788212 in words is "two hundred twenty billion, nine hundred twenty-seven million, seven hundred eighty-eight thousand, two hundred twelve".