222211312011 has 40 divisors (see below), whose sum is σ = 358799120064. Its totient is φ = 136240652160.

The previous prime is 222211312007. The next prime is 222211312021. The reversal of 222211312011 is 110213112222.

222211312011 is a `hidden beast` number, since 222 + 211 + 31 + 201 + 1 = 666.

It is not a de Polignac number, because 222211312011 - 2² = 222211312007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222211312021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103986 + ... + 674711.

Almost surely, 2^222211312011 is an apocalyptic number.

222211312011 is a deficient number, since it is larger than the sum of its proper divisors (136587808053).

222211312011 is a wasteful number, since it uses less digits than its factorization.

222211312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778993 (or 778984 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 222211312011 its reverse (110213112222), we get a palindrome (332424424233).

The spelling of 222211312011 in words is "two hundred twenty-two billion, two hundred eleven million, three hundred twelve thousand, eleven".