2121233113101 has 16 divisors (see below), whose sum is σ = 2844675288000. Its totient is φ = 1405976306688.

The previous prime is 2121233113081. The next prime is 2121233113169. The reversal of 2121233113101 is 1013113321212.

It is not a de Polignac number, because 2121233113101 - 2³³ = 2112643178509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121233113001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337325 + ... + 3115373.

It is an arithmetic number, because the mean of its divisors is an integer number (177792205500).

Almost surely, 2^{2121233113101} is an apocalyptic number.

It is an amenable number.

2121233113101 is a deficient number, since it is larger than the sum of its proper divisors (723442174899).

2121233113101 is a wasteful number, since it uses less digits than its factorization.

2121233113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783308.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2121233113101 its reverse (1013113321212), we get a palindrome (3134346434313).

The spelling of 2121233113101 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-three million, one hundred thirteen thousand, one hundred one".