2121231013033 has 32 divisors (see below), whose sum is σ = 2365795123200. Its totient is φ = 1885548250560.

The previous prime is 2121231013019. The next prime is 2121231013039. The reversal of 2121231013033 is 3303101321212.

It is a cyclic number.

It is not a de Polignac number, because 2121231013033 - 2¹⁷ = 2121230881961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121231012995 and 2121231013013.

It is not an unprimeable number, because it can be changed into a prime (2121231013039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211969716 + ... + 211979722.

It is an arithmetic number, because the mean of its divisors is an integer number (73931097600).

Almost surely, 2^{2121231013033} is an apocalyptic number.

It is an amenable number.

2121231013033 is a deficient number, since it is larger than the sum of its proper divisors (244564110167).

2121231013033 is a wasteful number, since it uses less digits than its factorization.

2121231013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121231013033 its reverse (3303101321212), we get a palindrome (5424332334245).

The spelling of 2121231013033 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-one million, thirteen thousand, thirty-three".