100155355212 has 48 divisors (see below), whose sum is σ = 254980357632. Its totient is φ = 30345410880.

The previous prime is 100155355207. The next prime is 100155355217. The reversal of 100155355212 is 212553551001.

It is an interprime number because it is at equal distance from previous prime (100155355207) and next prime (100155355217).

It is a self number, because there is not a number n which added to its sum of digits gives 100155355212.

It is not an unprimeable number, because it can be changed into a prime (100155355217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850638 + ... + 961194.

It is an arithmetic number, because the mean of its divisors is an integer number (5312090784).

Almost surely, 2^100155355212 is an apocalyptic number.

100155355212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100155355212 is an abundant number, since it is smaller than the sum of its proper divisors (154825002420).

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

100155355212 is a wasteful number, since it uses less digits than its factorization.

100155355212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117438 (or 117436 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 100155355212 in words is "one hundred billion, one hundred fifty-five million, three hundred fifty-five thousand, two hundred twelve".