20212101012 has 24 divisors (see below), whose sum is σ = 47628518112. Its totient is φ = 6670660000.

The previous prime is 20212101011. The next prime is 20212101017. The reversal of 20212101012 is 21010121202.

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 (20212101011) 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, 8337114 + ... + 8339537.

It is an arithmetic number, because the mean of its divisors is an integer number (1984521588).

Almost surely, 2^20212101012 is an apocalyptic number.

It is an amenable number.

20212101012 is an abundant number, since it is smaller than the sum of its proper divisors (27416417100).

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

20212101012 is a wasteful number, since it uses less digits than its factorization.

20212101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676759 (or 16676757 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20212101012 its reverse (21010121202), we get a palindrome (41222222214).

The spelling of 20212101012 in words is "twenty billion, two hundred twelve million, one hundred one thousand, twelve".