2212220021122 has 4 divisors (see below), whose sum is σ = 3318330031686. Its totient is φ = 1106110010560.

The previous prime is 2212220021069. The next prime is 2212220021173. The reversal of 2212220021122 is 2211200222122.

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., 2186757755361 + 25462265761 = 1478769^2 + 159569^2 .

It is a super-2 number, since 2×2212220021122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2212220021122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553055005279 + ... + 553055005282.

Almost surely, 2^{2212220021122} is an apocalyptic number.

2212220021122 is a deficient number, since it is larger than the sum of its proper divisors (1106110010564).

2212220021122 is a wasteful number, since it uses less digits than its factorization.

2212220021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106110010563.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2212220021122 its reverse (2211200222122), we get a palindrome (4423420243244).

The spelling of 2212220021122 in words is "two trillion, two hundred twelve billion, two hundred twenty million, twenty-one thousand, one hundred twenty-two".