1100211111222 has 64 divisors (see below), whose sum is σ = 2248488253440. Its totient is φ = 358817969664.

The previous prime is 1100211111211. The next prime is 1100211111229. The reversal of 1100211111222 is 2221111120011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100211111229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78260818 + ... + 78274874.

It is an arithmetic number, because the mean of its divisors is an integer number (35132628960).

Almost surely, 2^{1100211111222} is an apocalyptic number.

1100211111222 is an abundant number, since it is smaller than the sum of its proper divisors (1148277142218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100211111222 is a wasteful number, since it uses less digits than its factorization.

1100211111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15677.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1100211111222 its reverse (2221111120011), we get a palindrome (3321322231233).

The spelling of 1100211111222 in words is "one trillion, one hundred billion, two hundred eleven million, one hundred eleven thousand, two hundred twenty-two".