2112222012222 has 48 divisors (see below), whose sum is σ = 4969364392080. Its totient is φ = 596711187072.

The previous prime is 2112222012119. The next prime is 2112222012253. The reversal of 2112222012222 is 2222102222112.

It is a super-2 number, since 2×2112222012222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40335793 + ... + 40388124.

It is an arithmetic number, because the mean of its divisors is an integer number (103528424835).

Almost surely, 2^{2112222012222} is an apocalyptic number.

2112222012222 is an abundant number, since it is smaller than the sum of its proper divisors (2857142379858).

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

2112222012222 is a wasteful number, since it uses less digits than its factorization.

2112222012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80724025 (or 80724018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2112222012222 its reverse (2222102222112), we get a palindrome (4334324234334).

The spelling of 2112222012222 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".