22011201020 has 24 divisors (see below), whose sum is σ = 48233241504. Its totient is φ = 8421676736.

The previous prime is 22011201007. The next prime is 22011201041. The reversal of 22011201020 is 2010211022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22011200992 and 22011201010.

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, 23924759 + ... + 23925678.

It is an arithmetic number, because the mean of its divisors is an integer number (2009718396).

Almost surely, 2^22011201020 is an apocalyptic number.

22011201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011201020 is an abundant number, since it is smaller than the sum of its proper divisors (26222040484).

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

22011201020 is a wasteful number, since it uses less digits than its factorization.

22011201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47850469 (or 47850467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22011201020 its reverse (2010211022), we get a palindrome (24021412042).

The spelling of 22011201020 in words is "twenty-two billion, eleven million, two hundred one thousand, twenty".