20121022100022 has 16 divisors (see below), whose sum is σ = 40656910636272. Its totient is φ = 6637862960640.

The previous prime is 20121022100009. The next prime is 20121022100063. The reversal of 20121022100022 is 22000122012102.

It is a junction number, because it is equal to n+sod(n) for n = 20121022099974 and 20121022100010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17286100879 + ... + 17286102042.

It is an arithmetic number, because the mean of its divisors is an integer number (2541056914767).

Almost surely, 2^{20121022100022} is an apocalyptic number.

20121022100022 is an abundant number, since it is smaller than the sum of its proper divisors (20535888536250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121022100022 is a wasteful number, since it uses less digits than its factorization.

20121022100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34572203023.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121022100022 its reverse (22000122012102), we get a palindrome (42121144112124).

The spelling of 20121022100022 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, one hundred thousand, twenty-two".