100121111121112 has 32 divisors (see below), whose sum is σ = 190260450223200. Its totient is φ = 49388518816000.

The previous prime is 100121111121071. The next prime is 100121111121127. The reversal of 100121111121112 is 211121111121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220257412 + ... + 220711507.

It is an arithmetic number, because the mean of its divisors is an integer number (5945639069475).

Almost surely, 2^{100121111121112} is an apocalyptic number.

It is an amenable number.

100121111121112 is a deficient number, since it is larger than the sum of its proper divisors (90139339102088).

100121111121112 is a wasteful number, since it uses less digits than its factorization.

100121111121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440969307 (or 440969303 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 100121111121112 its reverse (211121111121001), we get a palindrome (311242222242113).

The spelling of 100121111121112 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twelve".