22021020121022 has 32 divisors (see below), whose sum is σ = 38118706430112. Its totient is φ = 9450442681344.

The previous prime is 22021020121003. The next prime is 22021020121063. The reversal of 22021020121022 is 22012102012022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300091703 + ... + 300165074.

It is an arithmetic number, because the mean of its divisors is an integer number (1191209575941).

Almost surely, 2^{22021020121022} is an apocalyptic number.

22021020121022 is a deficient number, since it is larger than the sum of its proper divisors (16097686309090).

22021020121022 is a wasteful number, since it uses less digits than its factorization.

22021020121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600256892.

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

Adding to 22021020121022 its reverse (22012102012022), we get a palindrome (44033122133044).

The spelling of 22021020121022 in words is "twenty-two trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, twenty-two".