22220211222122 has 4 divisors (see below), whose sum is σ = 33330316833186. Its totient is φ = 11110105611060.

The previous prime is 22220211222113. The next prime is 22220211222133. The reversal of 22220211222122 is 22122211202222.

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

It can be written as a sum of positive squares in only one way, i.e., 21382384043881 + 837827178241 = 4624109^2 + 915329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555052805529 + ... + 5555052805532.

Almost surely, 2^{22220211222122} is an apocalyptic number.

22220211222122 is a deficient number, since it is larger than the sum of its proper divisors (11110105611064).

22220211222122 is a wasteful number, since it uses less digits than its factorization.

22220211222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110105611063.

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

Adding to 22220211222122 its reverse (22122211202222), we get a palindrome (44342422424344).

The spelling of 22220211222122 in words is "twenty-two trillion, two hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-two".