20220021168 has 40 divisors (see below), whose sum is σ = 53509085616. Its totient is φ = 6575616000.

The previous prime is 20220021167. The next prime is 20220021271. The reversal of 20220021168 is 86112002202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20220021167) 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, 5135233 + ... + 5139168.

Almost surely, 2^20220021168 is an apocalyptic number.

It is an amenable number.

20220021168 is an abundant number, since it is smaller than the sum of its proper divisors (33289064448).

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

20220021168 is a wasteful number, since it uses less digits than its factorization.

20220021168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274453 (or 10274447 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 20220021168 in words is "twenty billion, two hundred twenty million, twenty-one thousand, one hundred sixty-eight".