20022021012 has 48 divisors (see below), whose sum is σ = 53415815040. Its totient is φ = 5718031872.

The previous prime is 20022020989. The next prime is 20022021017. The reversal of 20022021012 is 21012022002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022021017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141064 + ... + 244832.

It is an arithmetic number, because the mean of its divisors is an integer number (1112829480).

Almost surely, 2^20022021012 is an apocalyptic number.

It is an amenable number.

20022021012 is an abundant number, since it is smaller than the sum of its proper divisors (33393794028).

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

20022021012 is a wasteful number, since it uses less digits than its factorization.

20022021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106080 (or 106078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20022021012 its reverse (21012022002), we get a palindrome (41034043014).

The spelling of 20022021012 in words is "twenty billion, twenty-two million, twenty-one thousand, twelve".