22021000221122 has 96 divisors (see below), whose sum is σ = 40744168358400. Its totient is φ = 8875341393408.

The previous prime is 22021000220977. The next prime is 22021000221137. The reversal of 22021000221122 is 22112200012022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021000221122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143619503 + ... + 143772749.

It is an arithmetic number, because the mean of its divisors is an integer number (424418420400).

Almost surely, 2^{22021000221122} is an apocalyptic number.

22021000221122 is a deficient number, since it is larger than the sum of its proper divisors (18723168137278).

22021000221122 is a wasteful number, since it uses less digits than its factorization.

22021000221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153848 (or 153841 counting only the distinct ones).

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

Adding to 22021000221122 its reverse (22112200012022), we get a palindrome (44133200233144).

The spelling of 22021000221122 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-one thousand, one hundred twenty-two".