222121201313 has 4 divisors (see below), whose sum is σ = 242314037808. Its totient is φ = 201928364820.

The previous prime is 222121201303. The next prime is 222121201349. The reversal of 222121201313 is 313102121222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222121201313 - 2⁶ = 222121201249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121201303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10096418231 + ... + 10096418252.

It is an arithmetic number, because the mean of its divisors is an integer number (60578509452).

Almost surely, 2^222121201313 is an apocalyptic number.

It is an amenable number.

222121201313 is a deficient number, since it is larger than the sum of its proper divisors (20192836495).

222121201313 is a wasteful number, since it uses less digits than its factorization.

222121201313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20192836494.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222121201313 its reverse (313102121222), we get a palindrome (535223322535).

The spelling of 222121201313 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred one thousand, three hundred thirteen".