20234212100 has 18 divisors (see below), whose sum is σ = 43908240474. Its totient is φ = 8093684800.

The previous prime is 20234212081. The next prime is 20234212147. The reversal of 20234212100 is 121243202.

It can be written as a sum of positive squares in 3 ways, for example, as 49758916 + 20184453184 = 7054^2 + 142072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101170961 + ... + 101171160.

It is an arithmetic number, because the mean of its divisors is an integer number (2439346693).

Almost surely, 2^20234212100 is an apocalyptic number.

20234212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20234212100 is an abundant number, since it is smaller than the sum of its proper divisors (23674028374).

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

20234212100 is a wasteful number, since it uses less digits than its factorization.

20234212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202342135 (or 202342128 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20234212100 its reverse (121243202), we get a palindrome (20355455302).

The spelling of 20234212100 in words is "twenty billion, two hundred thirty-four million, two hundred twelve thousand, one hundred".