220122122121210 has 64 divisors (see below), whose sum is σ = 532330790137344. Its totient is φ = 58250607854400.

The previous prime is 220122122121067. The next prime is 220122122121221. The reversal of 220122122121210 is 12121221221022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603508917 + ... + 603873543.

It is an arithmetic number, because the mean of its divisors is an integer number (8317668595896).

Almost surely, 2^{220122122121210} is an apocalyptic number.

220122122121210 is an abundant number, since it is smaller than the sum of its proper divisors (312208668016134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220122122121210 is a wasteful number, since it uses less digits than its factorization.

220122122121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518379.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220122122121210 its reverse (12121221221022), we get a palindrome (232243343342232).

The spelling of 220122122121210 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred ten".