20222021000 has 32 divisors (see below), whose sum is σ = 47319531480. Its totient is φ = 8088808000.

The previous prime is 20222020993. The next prime is 20222021009. The reversal of 20222021000 is 12022202.

It can be written as a sum of positive squares in 4 ways, for example, as 1339413604 + 18882607396 = 36598^2 + 137414^2 .

It is not an unprimeable number, because it can be changed into a prime (20222021009) 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, 10110011 + ... + 10112010.

Almost surely, 2^20222021000 is an apocalyptic number.

20222021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222021000 is an abundant number, since it is smaller than the sum of its proper divisors (27097510480).

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

20222021000 is a wasteful number, since it uses less digits than its factorization.

20222021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222042 (or 20222028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20222021000 its reverse (12022202), we get a palindrome (20234043202).

It can be divided in two parts, 2022202 and 1000, that added together give a palindrome (2023202).

The spelling of 20222021000 in words is "twenty billion, two hundred twenty-two million, twenty-one thousand".