2213121120233 has 8 divisors (see below), whose sum is σ = 2217184731720. Its totient is φ = 2209057833600.

The previous prime is 2213121120193. The next prime is 2213121120271. The reversal of 2213121120233 is 3320211213122.

It can be written as a sum of positive squares in 4 ways, for example, as 52024135744 + 2161096984489 = 228088^2 + 1470067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213121120233 - 2⁶ = 2213121120169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213121120199 and 2213121120208.

It is not an unprimeable number, because it can be changed into a prime (2213121120733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16738283 + ... + 16869983.

It is an arithmetic number, because the mean of its divisors is an integer number (277148091465).

Almost surely, 2^{2213121120233} is an apocalyptic number.

It is an amenable number.

2213121120233 is a deficient number, since it is larger than the sum of its proper divisors (4063611487).

2213121120233 is a wasteful number, since it uses less digits than its factorization.

2213121120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162427.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2213121120233 its reverse (3320211213122), we get a palindrome (5533332333355).

The spelling of 2213121120233 in words is "two trillion, two hundred thirteen billion, one hundred twenty-one million, one hundred twenty thousand, two hundred thirty-three".