22221222212190 has 16 divisors (see below), whose sum is σ = 53330933309328. Its totient is φ = 5925659256576.

The previous prime is 22221222212183. The next prime is 22221222212191. The reversal of 22221222212190 is 9121222212222.

It is a super-2 number, since 2×22221222212190² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 740707407073 = 22221222212190 / (2 + 2 + 2 + 2 + 1 + 2 + 2 + 2 + 2 + 1 + 2 + 1 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221222212191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370353703507 + ... + 370353703566.

It is an arithmetic number, because the mean of its divisors is an integer number (3333183331833).

Almost surely, 2^{22221222212190} is an apocalyptic number.

22221222212190 is an abundant number, since it is smaller than the sum of its proper divisors (31109711097138).

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

22221222212190 is a wasteful number, since it uses less digits than its factorization.

22221222212190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740707407083.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 22221222212190 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred ninety".