10121121010112 has 56 divisors (see below), whose sum is σ = 23180516646240. Its totient is φ = 4294676505600.

The previous prime is 10121121010111. The next prime is 10121121010129. The reversal of 10121121010112 is 21101012112101.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121121010111) 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, 111795287 + ... + 111885782.

Almost surely, 2^{10121121010112} is an apocalyptic number.

It is an amenable number.

10121121010112 is an abundant number, since it is smaller than the sum of its proper divisors (13059395636128).

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

10121121010112 is a wasteful number, since it uses less digits than its factorization.

10121121010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223681189 (or 223681179 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10121121010112 its reverse (21101012112101), we get a palindrome (31222133122213).

The spelling of 10121121010112 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, ten thousand, one hundred twelve".