222211222123013 has 4 divisors (see below), whose sum is σ = 222239432264460. Its totient is φ = 222183011981568.

The previous prime is 222211222122997. The next prime is 222211222123057. The reversal of 222211222123013 is 310321222112222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65452258326049 + 156758963796964 = 8090257^2 + 12520342^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211222123013 - 2⁴ = 222211222122997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211122123013) 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, 14105058908 + ... + 14105074661.

It is an arithmetic number, because the mean of its divisors is an integer number (55559858066115).

Almost surely, 2^{222211222123013} is an apocalyptic number.

It is an amenable number.

222211222123013 is a deficient number, since it is larger than the sum of its proper divisors (28210141447).

222211222123013 is an equidigital number, since it uses as much as digits as its factorization.

222211222123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28210141446.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 222211222123013 its reverse (310321222112222), we get a palindrome (532532444235235).

The spelling of 222211222123013 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-three thousand, thirteen".