122211211210 has 24 divisors (see below), whose sum is σ = 241796398788. Its totient is φ = 44440440000.

The previous prime is 122211211207. The next prime is 122211211217. The reversal of 122211211210 is 12112112221.

It can be written as a sum of positive squares in 2 ways, for example, as 122044723801 + 166487409 = 349349^2 + 12903^2 .

It is not an unprimeable number, because it can be changed into a prime (122211211217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50499291 + ... + 50501710.

Almost surely, 2^122211211210 is an apocalyptic number.

122211211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122211211210 is a deficient number, since it is larger than the sum of its proper divisors (119585187578).

122211211210 is a wasteful number, since it uses less digits than its factorization.

122211211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001030 (or 101001019 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122211211210 its reverse (12112112221), we get a palindrome (134323323431).

The spelling of 122211211210 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred eleven thousand, two hundred ten".