22221111220222 has 32 divisors (see below), whose sum is σ = 34661547325440. Its totient is φ = 10672599497760.

The previous prime is 22221111220213. The next prime is 22221111220261. The reversal of 22221111220222 is 22202211112222.

It is a super-2 number, since 2×22221111220222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22221111220193 and 22221111220202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41991108 + ... + 42517000.

It is an arithmetic number, because the mean of its divisors is an integer number (1083173353920).

Almost surely, 2^{22221111220222} is an apocalyptic number.

22221111220222 is a deficient number, since it is larger than the sum of its proper divisors (12440436105218).

22221111220222 is a wasteful number, since it uses less digits than its factorization.

22221111220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530968.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22221111220222 its reverse (22202211112222), we get a palindrome (44423322332444).

The spelling of 22221111220222 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-two".