100210021212 has 96 divisors (see below), whose sum is σ = 279575396352. Its totient is φ = 27314882496.

The previous prime is 100210021183. The next prime is 100210021229. The reversal of 100210021212 is 212120012001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672243 + ... + 807669.

It is an arithmetic number, because the mean of its divisors is an integer number (2912243712).

Almost surely, 2^100210021212 is an apocalyptic number.

100210021212 is a gapful number since it is divisible by the number (12) 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 100210021212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139787698176).

100210021212 is an abundant number, since it is smaller than the sum of its proper divisors (179365375140).

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

100210021212 is a wasteful number, since it uses less digits than its factorization.

100210021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135847 (or 135845 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100210021212 its reverse (212120012001), we get a palindrome (312330033213).

The spelling of 100210021212 in words is "one hundred billion, two hundred ten million, twenty-one thousand, two hundred twelve".