20011220120022 has 16 divisors (see below), whose sum is σ = 40570692846960. Its totient is φ = 6579031272192.

The previous prime is 20011220120009. The next prime is 20011220120081. The reversal of 20011220120022 is 22002102211002.

It is a junction number, because it is equal to n+sod(n) for n = 20011220119983 and 20011220120010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22843858147 + ... + 22843859022.

It is an arithmetic number, because the mean of its divisors is an integer number (2535668302935).

Almost surely, 2^{20011220120022} is an apocalyptic number.

20011220120022 is an abundant number, since it is smaller than the sum of its proper divisors (20559472726938).

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

20011220120022 is a wasteful number, since it uses less digits than its factorization.

20011220120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45687717247.

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

Adding to 20011220120022 its reverse (22002102211002), we get a palindrome (42013322331024).

The spelling of 20011220120022 in words is "twenty trillion, eleven billion, two hundred twenty million, one hundred twenty thousand, twenty-two".