100012212221212 has 24 divisors (see below), whose sum is σ = 175077478958480. Its totient is φ = 49990077728640.

The previous prime is 100012212221171. The next prime is 100012212221213. The reversal of 100012212221212 is 212122212210001.

It is a self number, because there is not a number n which added to its sum of digits gives 100012212221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012212221213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173860048 + ... + 174434344.

Almost surely, 2^{100012212221212} is an apocalyptic number.

It is an amenable number.

100012212221212 is a deficient number, since it is larger than the sum of its proper divisors (75065266737268).

100012212221212 is a wasteful number, since it uses less digits than its factorization.

100012212221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588181 (or 588179 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 100012212221212 its reverse (212122212210001), we get a palindrome (312134424431213).

The spelling of 100012212221212 in words is "one hundred trillion, twelve billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twelve".