20022033312 has 72 divisors (see below), whose sum is σ = 56956483584. Its totient is φ = 6671804544.

The previous prime is 20022033281. The next prime is 20022033329. The reversal of 20022033312 is 21333022002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022203 + ... + 1041605.

It is an arithmetic number, because the mean of its divisors is an integer number (791062272).

Almost surely, 2^20022033312 is an apocalyptic number.

It is an amenable number.

20022033312 is an abundant number, since it is smaller than the sum of its proper divisors (36934450272).

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

20022033312 is a wasteful number, since it uses less digits than its factorization.

20022033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23002 (or 22991 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20022033312 its reverse (21333022002), we get a palindrome (41355055314).

The spelling of 20022033312 in words is "twenty billion, twenty-two million, thirty-three thousand, three hundred twelve".