222211126 has 4 divisors (see below), whose sum is σ = 333316692. Its totient is φ = 111105562.

The previous prime is 222211117. The next prime is 222211127. The reversal of 222211126 is 621112222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552780 + ... + 55552783.

It is an arithmetic number, because the mean of its divisors is an integer number (83329173).

Almost surely, 2^222211126 is an apocalyptic number.

222211126 is a deficient number, since it is larger than the sum of its proper divisors (111105566).

222211126 is a wasteful number, since it uses less digits than its factorization.

222211126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111105565.

The product of its digits is 192, while the sum is 19.

The square root of 222211126 is about 14906.7476667447. The cubic root of 222211126 is about 605.6967825226.

Adding to 222211126 its reverse (621112222), we get a palindrome (843323348).

The spelling of 222211126 in words is "two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-six".