212110022122210 has 16 divisors (see below), whose sum is σ = 381830035177656. Its totient is φ = 84836898769408.

The previous prime is 212110022122139. The next prime is 212110022122253. The reversal of 212110022122210 is 12221220011212.

It can be written as a sum of positive squares in 4 ways, for example, as 212054436043921 + 55586078289 = 14562089^2 + 235767^2 .

It is a super-2 number, since 2×212110022122210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888634639 + ... + 888873298.

Almost surely, 2^{212110022122210} is an apocalyptic number.

212110022122210 is a deficient number, since it is larger than the sum of its proper divisors (169720013055446).

212110022122210 is a wasteful number, since it uses less digits than its factorization.

212110022122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777519877.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212110022122210 its reverse (12221220011212), we get a palindrome (224331242133422).

The spelling of 212110022122210 in words is "two hundred twelve trillion, one hundred ten billion, twenty-two million, one hundred twenty-two thousand, two hundred ten".