20011220011022 has 16 divisors (see below), whose sum is σ = 31377331507200. Its totient is φ = 9560280688920.

The previous prime is 20011220011021. The next prime is 20011220011031. The reversal of 20011220011022 is 22011002211002.

It is a junction number, because it is equal to n+sod(n) for n = 20011220010988 and 20011220011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011220011021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042790122 + ... + 2042799917.

It is an arithmetic number, because the mean of its divisors is an integer number (1961083219200).

Almost surely, 2^{20011220011022} is an apocalyptic number.

20011220011022 is a deficient number, since it is larger than the sum of its proper divisors (11366111496178).

20011220011022 is a wasteful number, since it uses less digits than its factorization.

20011220011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085590151.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20011220011022 its reverse (22011002211002), we get a palindrome (42022222222024).

The spelling of 20011220011022 in words is "twenty trillion, eleven billion, two hundred twenty million, eleven thousand, twenty-two".