22021331000 has 32 divisors (see below), whose sum is σ = 51529916880. Its totient is φ = 8808532000.

The previous prime is 22021330997. The next prime is 22021331009. The reversal of 22021331000 is 13312022.

It is a happy number.

It is a super-2 number, since 2×22021331000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021331009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11009666 + ... + 11011665.

Almost surely, 2^22021331000 is an apocalyptic number.

22021331000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021331000 is an abundant number, since it is smaller than the sum of its proper divisors (29508585880).

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

22021331000 is a wasteful number, since it uses less digits than its factorization.

22021331000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22021352 (or 22021338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22021331000 its reverse (13312022), we get a palindrome (22034643022).

The spelling of 22021331000 in words is "twenty-two billion, twenty-one million, three hundred thirty-one thousand".