222418755997 has 4 divisors (see below), whose sum is σ = 223472873536. Its totient is φ = 221364638460.

The previous prime is 222418755991. The next prime is 222418756003. The reversal of 222418755997 is 799557814222.

222418755997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 799557814222 = 2 ⋅399778907111.

It is an interprime number because it is at equal distance from previous prime (222418755991) and next prime (222418756003).

It is a cyclic number.

It is not a de Polignac number, because 222418755997 - 2⁷ = 222418755869 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 (222418755991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527058453 + ... + 527058874.

It is an arithmetic number, because the mean of its divisors is an integer number (55868218384).

Almost surely, 2^222418755997 is an apocalyptic number.

It is an amenable number.

222418755997 is a deficient number, since it is larger than the sum of its proper divisors (1054117539).

222418755997 is a wasteful number, since it uses less digits than its factorization.

222418755997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054117538.

The product of its digits is 25401600, while the sum is 61.

The spelling of 222418755997 in words is "two hundred twenty-two billion, four hundred eighteen million, seven hundred fifty-five thousand, nine hundred ninety-seven".