2182222222812 has 72 divisors (see below), whose sum is σ = 5801550168960. Its totient is φ = 690660696960.

The previous prime is 2182222222801. The next prime is 2182222222837.

2182222222812 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 18387987 + ... + 18506282.

It is an arithmetic number, because the mean of its divisors is an integer number (80577085680).

Almost surely, 2^{2182222222812} is an apocalyptic number.

It is an amenable number.

2182222222812 is an abundant number, since it is smaller than the sum of its proper divisors (3619327946148).

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

2182222222812 is a wasteful number, since it uses less digits than its factorization.

2182222222812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36894363 (or 36894358 counting only the distinct ones).

The product of its digits is 32768, while the sum is 36.

The spelling of 2182222222812 in words is "two trillion, one hundred eighty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, eight hundred twelve".