222357778889 has 4 divisors (see below), whose sum is σ = 223957475280. Its totient is φ = 220758082500.

The previous prime is 222357778879. The next prime is 222357778921. The reversal of 222357778889 is 988877753222.

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 222357778889 - 2²⁰ = 222356730313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222357778879) 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, 799847987 + ... + 799848264.

It is an arithmetic number, because the mean of its divisors is an integer number (55989368820).

Almost surely, 2^222357778889 is an apocalyptic number.

It is an amenable number.

222357778889 is a deficient number, since it is larger than the sum of its proper divisors (1599696391).

222357778889 is a wasteful number, since it uses less digits than its factorization.

222357778889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599696390.

The product of its digits is 189665280, while the sum is 68.

The spelling of 222357778889 in words is "two hundred twenty-two billion, three hundred fifty-seven million, seven hundred seventy-eight thousand, eight hundred eighty-nine".