22222210222 has 4 divisors (see below), whose sum is σ = 33333315336. Its totient is φ = 11111105110.

The previous prime is 22222210217. The next prime is 22222210321. The reversal of 22222210222 is 22201222222.

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

It is a super-2 number, since 2×22222210222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22222210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555552554 + ... + 5555552557.

It is an arithmetic number, because the mean of its divisors is an integer number (8333328834).

Almost surely, 2^22222210222 is an apocalyptic number.

22222210222 is a deficient number, since it is larger than the sum of its proper divisors (11111105114).

22222210222 is a wasteful number, since it uses less digits than its factorization.

22222210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111105113.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22222210222 its reverse (22201222222), we get a palindrome (44423432444).

The spelling of 22222210222 in words is "twenty-two billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".