121000010111112 has 64 divisors (see below), whose sum is σ = 330001078881600. Its totient is φ = 36666552919040.

The previous prime is 121000010111039. The next prime is 121000010111287. The reversal of 121000010111112 is 211111010000121.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 120095908 + ... + 121099244.

It is an arithmetic number, because the mean of its divisors is an integer number (5156266857525).

Almost surely, 2^{121000010111112} is an apocalyptic number.

121000010111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121000010111112 is an abundant number, since it is smaller than the sum of its proper divisors (209001068770488).

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

121000010111112 is a wasteful number, since it uses less digits than its factorization.

121000010111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460166 (or 1460162 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 121000010111112 its reverse (211111010000121), we get a palindrome (332111020111233).

The spelling of 121000010111112 in words is "one hundred twenty-one trillion, ten million, one hundred eleven thousand, one hundred twelve".