2213121330031 has 32 divisors (see below), whose sum is σ = 2323244851200. Its totient is φ = 2106432017664.

The previous prime is 2213121329987. The next prime is 2213121330041. The reversal of 2213121330031 is 1300331213122.

It is a cyclic number.

It is not a de Polignac number, because 2213121330031 - 2¹⁹ = 2213120805743 is a prime.

It is a super-2 number, since 2×2213121330031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213121329984 and 2213121330011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213121330041) 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, 129421320 + ... + 129438418.

It is an arithmetic number, because the mean of its divisors is an integer number (72601401600).

Almost surely, 2^{2213121330031} is an apocalyptic number.

2213121330031 is a deficient number, since it is larger than the sum of its proper divisors (110123521169).

2213121330031 is a wasteful number, since it uses less digits than its factorization.

2213121330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655.

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

Adding to 2213121330031 its reverse (1300331213122), we get a palindrome (3513452543153).

The spelling of 2213121330031 in words is "two trillion, two hundred thirteen billion, one hundred twenty-one million, three hundred thirty thousand, thirty-one".