2222121100104 has 48 divisors (see below), whose sum is σ = 6025300199100. Its totient is φ = 739838657664.

The previous prime is 2222121100097. The next prime is 2222121100127. The reversal of 2222121100104 is 4010011212222.

It can be written as a sum of positive squares in 2 ways, for example, as 2221882397604 + 238702500 = 1490598^2 + 15450^2 .

It is a super-2 number, since 2×2222121100104² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18029319 + ... + 18152150.

Almost surely, 2^{2222121100104} is an apocalyptic number.

2222121100104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2222121100104 is an abundant number, since it is smaller than the sum of its proper divisors (3803179098996).

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

2222121100104 is a wasteful number, since it uses less digits than its factorization.

2222121100104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182334 (or 36182327 counting only the distinct ones).

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

Adding to 2222121100104 its reverse (4010011212222), we get a palindrome (6232132312326).

The spelling of 2222121100104 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, one hundred four".