255605222212 has 6 divisors (see below), whose sum is σ = 447309138878. Its totient is φ = 127802611104.

The previous prime is 255605222183. The next prime is 255605222237. The reversal of 255605222212 is 212222506552.

It can be written as a sum of positive squares in only one way, i.e., 244049832196 + 11555390016 = 494014^2 + 107496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31950652773 + ... + 31950652780.

Almost surely, 2^255605222212 is an apocalyptic number.

It is an amenable number.

255605222212 is a deficient number, since it is larger than the sum of its proper divisors (191703916666).

255605222212 is a wasteful number, since it uses less digits than its factorization.

255605222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63901305557 (or 63901305555 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 255605222212 its reverse (212222506552), we get a palindrome (467827728764).

The spelling of 255605222212 in words is "two hundred fifty-five billion, six hundred five million, two hundred twenty-two thousand, two hundred twelve".