20221021120 has 28 divisors (see below), whose sum is σ = 48151307304. Its totient is φ = 8088408320.

The previous prime is 20221021103. The next prime is 20221021151. The reversal of 20221021120 is 2112012202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221021120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31595026 + ... + 31595665.

Almost surely, 2^20221021120 is an apocalyptic number.

20221021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221021120 is an abundant number, since it is smaller than the sum of its proper divisors (27930286184).

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

20221021120 is an equidigital number, since it uses as much as digits as its factorization.

20221021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63190708 (or 63190698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20221021120 its reverse (2112012202), we get a palindrome (22333033322).

The spelling of 20221021120 in words is "twenty billion, two hundred twenty-one million, twenty-one thousand, one hundred twenty".