202212100102100 has 144 divisors (see below), whose sum is σ = 486698875278336. Its totient is φ = 72305512752000.

The previous prime is 202212100102081. The next prime is 202212100102109. The reversal of 202212100102100 is 1201001212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212100102109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39056405 + ... + 43929795.

It is an arithmetic number, because the mean of its divisors is an integer number (3379853300544).

Almost surely, 2^{202212100102100} is an apocalyptic number.

202212100102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202212100102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243349437639168).

202212100102100 is an abundant number, since it is smaller than the sum of its proper divisors (284486775176236).

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

202212100102100 is a wasteful number, since it uses less digits than its factorization.

202212100102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874046 (or 4874039 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202212100102100 its reverse (1201001212202), we get a palindrome (203413101314302).

The spelling of 202212100102100 in words is "two hundred two trillion, two hundred twelve billion, one hundred million, one hundred two thousand, one hundred".