22212000021122 has 4 divisors (see below), whose sum is σ = 33318000031686. Its totient is φ = 11106000010560.

The previous prime is 22212000020963. The next prime is 22212000021151. The reversal of 22212000021122 is 22112000021222.

It is a happy number.

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., 21747570038041 + 464429983081 = 4663429^2 + 681491^2 .

It is a super-2 number, since 2×22212000021122² (a number of 27 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 22212000021122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5553000005279 + ... + 5553000005282.

Almost surely, 2^{22212000021122} is an apocalyptic number.

22212000021122 is a deficient number, since it is larger than the sum of its proper divisors (11106000010564).

22212000021122 is a wasteful number, since it uses less digits than its factorization.

22212000021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106000010563.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22212000021122 its reverse (22112000021222), we get a palindrome (44324000042344).

The spelling of 22212000021122 in words is "twenty-two trillion, two hundred twelve billion, twenty-one thousand, one hundred twenty-two".