220122211122 has 40 divisors (see below), whose sum is σ = 538076520432. Its totient is φ = 66703699800.

The previous prime is 220122211121. The next prime is 220122211123. The reversal of 220122211122 is 221112221022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220122211121) and next prime (220122211123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220122211095 and 220122211104.

It is not an unprimeable number, because it can be changed into a prime (220122211121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61760904 + ... + 61764467.

Almost surely, 2^220122211122 is an apocalyptic number.

220122211122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220122211122 is an abundant number, since it is smaller than the sum of its proper divisors (317954309310).

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

220122211122 is a wasteful number, since it uses less digits than its factorization.

220122211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123525396 (or 123525387 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220122211122 its reverse (221112221022), we get a palindrome (441234432144).

The spelling of 220122211122 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".