100121211102112 has 24 divisors (see below), whose sum is σ = 197170456032900. Its totient is φ = 50046174649344.

The previous prime is 100121211102109. The next prime is 100121211102181. The reversal of 100121211102112 is 211201112121001.

It can be written as a sum of positive squares in 2 ways, for example, as 91244601257616 + 8876609844496 = 9552204^2 + 2979364^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450852937 + ... + 451074952.

Almost surely, 2^{100121211102112} is an apocalyptic number.

It is an amenable number.

100121211102112 is a deficient number, since it is larger than the sum of its proper divisors (97049244930788).

100121211102112 is an equidigital number, since it uses as much as digits as its factorization.

100121211102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901931368 (or 901931360 counting only the distinct ones).

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

Adding to 100121211102112 its reverse (211201112121001), we get a palindrome (311322323223113).

The spelling of 100121211102112 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, one hundred twelve".