20212100102 has 8 divisors (see below), whose sum is σ = 30630708696. Its totient is φ = 10001863872.

The previous prime is 20212100093. The next prime is 20212100113. The reversal of 20212100102 is 20100121202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 52092848 + ... + 52093235.

It is an arithmetic number, because the mean of its divisors is an integer number (3828838587).

Almost surely, 2^20212100102 is an apocalyptic number.

20212100102 is a deficient number, since it is larger than the sum of its proper divisors (10418608594).

20212100102 is a wasteful number, since it uses less digits than its factorization.

20212100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104186182.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20212100102 its reverse (20100121202), we get a palindrome (40312221304).

The spelling of 20212100102 in words is "twenty billion, two hundred twelve million, one hundred thousand, one hundred two".