220012222122 has 96 divisors (see below), whose sum is σ = 625598737920. Its totient is φ = 54138339360.

The previous prime is 220012222093. The next prime is 220012222151. The reversal of 220012222122 is 221222210022.

It is an interprime number because it is at equal distance from previous prime (220012222093) and next prime (220012222151).

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 = 220012222095 and 220012222104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4151008 + ... + 4203675.

It is an arithmetic number, because the mean of its divisors is an integer number (6516653520).

Almost surely, 2^220012222122 is an apocalyptic number.

220012222122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220012222122 is an abundant number, since it is smaller than the sum of its proper divisors (405586515798).

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

220012222122 is a wasteful number, since it uses less digits than its factorization.

220012222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8354728 (or 8354725 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220012222122 its reverse (221222210022), we get a palindrome (441234432144).

The spelling of 220012222122 in words is "two hundred twenty billion, twelve million, two hundred twenty-two thousand, one hundred twenty-two".