202212102100 has 36 divisors (see below), whose sum is σ = 442825975900. Its totient is φ = 80142773760.

The previous prime is 202212102091. The next prime is 202212102101. The reversal of 202212102100 is 1201212202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1262523024 + 200949579076 = 35532^2 + 448274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212102101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9264885 + ... + 9286684.

Almost surely, 2^202212102100 is an apocalyptic number.

202212102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202212102100 is an abundant number, since it is smaller than the sum of its proper divisors (240613873800).

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

202212102100 is a wasteful number, since it uses less digits than its factorization.

202212102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18551692 (or 18551685 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202212102100 its reverse (1201212202), we get a palindrome (203413314302).

It can be divided in two parts, 202212102 and 100, that added together give a palindrome (202212202).

The spelling of 202212102100 in words is "two hundred two billion, two hundred twelve million, one hundred two thousand, one hundred".