100212112222012 has 48 divisors (see below), whose sum is σ = 204529263769600. Its totient is φ = 42944950799856.

The previous prime is 100212112221989. The next prime is 100212112222037. The reversal of 100212112222012 is 210222211212001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16448113 + ... + 21701719.

Almost surely, 2^{100212112222012} is an apocalyptic number.

It is an amenable number.

100212112222012 is an abundant number, since it is smaller than the sum of its proper divisors (104317151547588).

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

100212112222012 is a wasteful number, since it uses less digits than its factorization.

100212112222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267535 (or 5267519 counting only the distinct ones).

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

Adding to 100212112222012 its reverse (210222211212001), we get a palindrome (310434323434013).

The spelling of 100212112222012 in words is "one hundred trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, twelve".