22122222011222 has 4 divisors (see below), whose sum is σ = 33183333016836. Its totient is φ = 11061111005610.

The previous prime is 22122222011179. The next prime is 22122222011273. The reversal of 22122222011222 is 22211022222122.

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, 5530555502804 + ... + 5530555502807.

It is an arithmetic number, because the mean of its divisors is an integer number (8295833254209).

Almost surely, 2^{22122222011222} is an apocalyptic number.

22122222011222 is a deficient number, since it is larger than the sum of its proper divisors (11061111005614).

22122222011222 is a wasteful number, since it uses less digits than its factorization.

22122222011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11061111005613.

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

Adding to 22122222011222 its reverse (22211022222122), we get a palindrome (44333244233344).

The spelling of 22122222011222 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-two million, eleven thousand, two hundred twenty-two".