100212102220 has 12 divisors (see below), whose sum is σ = 210445414704. Its totient is φ = 40084840880.

The previous prime is 100212102191. The next prime is 100212102223. The reversal of 100212102220 is 22201212001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 100212102220.

It is not an unprimeable number, because it can be changed into a prime (100212102223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505302536 + ... + 2505302575.

It is an arithmetic number, because the mean of its divisors is an integer number (17537117892).

Almost surely, 2^100212102220 is an apocalyptic number.

100212102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212102220 is an abundant number, since it is smaller than the sum of its proper divisors (110233312484).

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

100212102220 is a wasteful number, since it uses less digits than its factorization.

100212102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010605120 (or 5010605118 counting only the distinct ones).

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

Adding to 100212102220 its reverse (22201212001), we get a palindrome (122413314221).

The spelling of 100212102220 in words is "one hundred billion, two hundred twelve million, one hundred two thousand, two hundred twenty".