110101010112121 has 4 divisors (see below), whose sum is σ = 125829725842432. Its totient is φ = 94372294381812.

The previous prime is 110101010111993. The next prime is 110101010112133. The reversal of 110101010112121 is 121211010101011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110101010112121 - 2⁷ = 110101010111993 is a prime.

It is a super-2 number, since 2×110101010112121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110101010112161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7864357865145 + ... + 7864357865158.

It is an arithmetic number, because the mean of its divisors is an integer number (31457431460608).

Almost surely, 2^{110101010112121} is an apocalyptic number.

It is an amenable number.

110101010112121 is a deficient number, since it is larger than the sum of its proper divisors (15728715730311).

110101010112121 is an equidigital number, since it uses as much as digits as its factorization.

110101010112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15728715730310.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 110101010112121 its reverse (121211010101011), we get a palindrome (231312020213132).

The spelling of 110101010112121 in words is "one hundred ten trillion, one hundred one billion, ten million, one hundred twelve thousand, one hundred twenty-one".