2121003022331 has 16 divisors (see below), whose sum is σ = 2133927350016. Its totient is φ = 2108126588256.

The previous prime is 2121003022319. The next prime is 2121003022421. The reversal of 2121003022331 is 1332203001212.

It is a cyclic number.

It is not a de Polignac number, because 2121003022331 - 2³⁴ = 2103823153147 is a prime.

It is a super-2 number, since 2×2121003022331² (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 (2121003022231) 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, 163562810 + ... + 163575776.

It is an arithmetic number, because the mean of its divisors is an integer number (133370459376).

Almost surely, 2^{2121003022331} is an apocalyptic number.

2121003022331 is a deficient number, since it is larger than the sum of its proper divisors (12924327685).

2121003022331 is a wasteful number, since it uses less digits than its factorization.

2121003022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2121003022331 its reverse (1332203001212), we get a palindrome (3453206023543).

The spelling of 2121003022331 in words is "two trillion, one hundred twenty-one billion, three million, twenty-two thousand, three hundred thirty-one".