20202120012 has 48 divisors (see below), whose sum is σ = 50883920640. Its totient is φ = 6219140928.

The previous prime is 20202119981. The next prime is 20202120019. The reversal of 20202120012 is 21002120202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20202120012.

It is not an unprimeable number, because it can be changed into a prime (20202120019) 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, 1253998 + ... + 1270005.

It is an arithmetic number, because the mean of its divisors is an integer number (1060081680).

Almost surely, 2^20202120012 is an apocalyptic number.

It is an amenable number.

20202120012 is an abundant number, since it is smaller than the sum of its proper divisors (30681800628).

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

20202120012 is a wasteful number, since it uses less digits than its factorization.

20202120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524062 (or 2524060 counting only the distinct ones).

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

Adding to 20202120012 its reverse (21002120202), we get a palindrome (41204240214).

The spelling of 20202120012 in words is "twenty billion, two hundred two million, one hundred twenty thousand, twelve".