2213213103121 has 16 divisors (see below), whose sum is σ = 2238623453520. Its totient is φ = 2187874252800.

The previous prime is 2213213103103. The next prime is 2213213103131. The reversal of 2213213103121 is 1213013123122.

It can be written as a sum of positive squares in 8 ways, for example, as 769899198721 + 1443313904400 = 877439^2 + 1201380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213213103121 - 2¹³ = 2213213094929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213213103092 and 2213213103101.

It is not an unprimeable number, because it can be changed into a prime (2213213103131) 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, 186025245 + ... + 186037141.

It is an arithmetic number, because the mean of its divisors is an integer number (139913965845).

Almost surely, 2^{2213213103121} is an apocalyptic number.

It is an amenable number.

2213213103121 is a deficient number, since it is larger than the sum of its proper divisors (25410350399).

2213213103121 is a wasteful number, since it uses less digits than its factorization.

2213213103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14724.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2213213103121 its reverse (1213013123122), we get a palindrome (3426226226243).

The spelling of 2213213103121 in words is "two trillion, two hundred thirteen billion, two hundred thirteen million, one hundred three thousand, one hundred twenty-one".