122211220112 has 10 divisors (see below), whose sum is σ = 236784238998. Its totient is φ = 61105610048.

The previous prime is 122211220111. The next prime is 122211220133. The reversal of 122211220112 is 211022112221.

It can be written as a sum of positive squares in only one way, i.e., 68426189056 + 53785031056 = 261584^2 + 231916^2 .

It is not an unprimeable number, because it can be changed into a prime (122211220111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819100613 + ... + 3819100644.

Almost surely, 2^122211220112 is an apocalyptic number.

It is an amenable number.

122211220112 is a deficient number, since it is larger than the sum of its proper divisors (114573018886).

122211220112 is an equidigital number, since it uses as much as digits as its factorization.

122211220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638201265 (or 7638201259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122211220112 its reverse (211022112221), we get a palindrome (333233332333).

The spelling of 122211220112 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty thousand, one hundred twelve".