222013204121 has 4 divisors (see below), whose sum is σ = 222242794752. Its totient is φ = 221783613492.

The previous prime is 222013204099. The next prime is 222013204151. The reversal of 222013204121 is 121402310222.

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 a de Polignac number, because none of the positive numbers 2^k-222013204121 is a prime.

It is a super-2 number, since 2×222013204121² (a number of 23 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 = 222013204093 and 222013204102.

It is not an unprimeable number, because it can be changed into a prime (222013204151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114793865 + ... + 114795798.

It is an arithmetic number, because the mean of its divisors is an integer number (55560698688).

Almost surely, 2^222013204121 is an apocalyptic number.

It is an amenable number.

222013204121 is a deficient number, since it is larger than the sum of its proper divisors (229590631).

222013204121 is an equidigital number, since it uses as much as digits as its factorization.

222013204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229590630.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222013204121 its reverse (121402310222), we get a palindrome (343415514343).

The spelling of 222013204121 in words is "two hundred twenty-two billion, thirteen million, two hundred four thousand, one hundred twenty-one".