22122221120222 has 4 divisors (see below), whose sum is σ = 33183331680336. Its totient is φ = 11061110560110.

The previous prime is 22122221120213. The next prime is 22122221120407. The reversal of 22122221120222 is 22202112222122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530555280054 + ... + 5530555280057.

It is an arithmetic number, because the mean of its divisors is an integer number (8295832920084).

Almost surely, 2^{22122221120222} is an apocalyptic number.

22122221120222 is a deficient number, since it is larger than the sum of its proper divisors (11061110560114).

22122221120222 is a wasteful number, since it uses less digits than its factorization.

22122221120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11061110560113.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22122221120222 its reverse (22202112222122), we get a palindrome (44324333342344).

The spelling of 22122221120222 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twenty-two".