212220551210 has 16 divisors (see below), whose sum is σ = 382008279816. Its totient is φ = 84885712128.

The previous prime is 212220551197. The next prime is 212220551267. The reversal of 212220551210 is 12155022212.

It can be written as a sum of positive squares in 4 ways, for example, as 212072223169 + 148328041 = 460513^2 + 12179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63374 + ... + 654566.

Almost surely, 2^212220551210 is an apocalyptic number.

212220551210 is a deficient number, since it is larger than the sum of its proper divisors (169787728606).

212220551210 is a wasteful number, since it uses less digits than its factorization.

212220551210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627097.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 212220551210 its reverse (12155022212), we get a palindrome (224375573422).

The spelling of 212220551210 in words is "two hundred twelve billion, two hundred twenty million, five hundred fifty-one thousand, two hundred ten".