2110121100121 has 4 divisors (see below), whose sum is σ = 2125301827600. Its totient is φ = 2094940372644.

The previous prime is 2110121100119. The next prime is 2110121100133. The reversal of 2110121100121 is 1210011210112.

It is a happy number.

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 2110121100121 - 2¹ = 2110121100119 is a prime.

It is a super-2 number, since 2×2110121100121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2110121100151) 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, 7590363531 + ... + 7590363808.

It is an arithmetic number, because the mean of its divisors is an integer number (531325456900).

Almost surely, 2^{2110121100121} is an apocalyptic number.

It is an amenable number.

2110121100121 is a deficient number, since it is larger than the sum of its proper divisors (15180727479).

2110121100121 is a wasteful number, since it uses less digits than its factorization.

2110121100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180727478.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2110121100121 its reverse (1210011210112), we get a palindrome (3320132310233).

The spelling of 2110121100121 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, one hundred thousand, one hundred twenty-one".