20212100052 has 12 divisors (see below), whose sum is σ = 47161566816. Its totient is φ = 6737366680.

The previous prime is 20212100039. The next prime is 20212100063. The reversal of 20212100052 is 25000121202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842170824 + ... + 842170847.

It is an arithmetic number, because the mean of its divisors is an integer number (3930130568).

Almost surely, 2^20212100052 is an apocalyptic number.

It is an amenable number.

20212100052 is an abundant number, since it is smaller than the sum of its proper divisors (26949466764).

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

20212100052 is a wasteful number, since it uses less digits than its factorization.

20212100052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684341678 (or 1684341676 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20212100052 its reverse (25000121202), we get a palindrome (45212221254).

The spelling of 20212100052 in words is "twenty billion, two hundred twelve million, one hundred thousand, fifty-two".