222211201111100 has 72 divisors (see below), whose sum is σ = 487533985827840. Its totient is φ = 87903775433920.

The previous prime is 222211201111027. The next prime is 222211201111153. The reversal of 222211201111100 is 1111102112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11408540 + ... + 23970339.

It is an arithmetic number, because the mean of its divisors is an integer number (6771305358720).

Almost surely, 2^{222211201111100} is an apocalyptic number.

222211201111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222211201111100 is an abundant number, since it is smaller than the sum of its proper divisors (265322784716740).

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

222211201111100 is a wasteful number, since it uses less digits than its factorization.

222211201111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35379587 (or 35379580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222211201111100 its reverse (1111102112222), we get a palindrome (223322303223322).

The spelling of 222211201111100 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred one million, one hundred eleven thousand, one hundred".