111211111200222 has 192 divisors, whose sum is σ = 264149554346496. Its totient is φ = 33535928724480.

The previous prime is 111211111200199. The next prime is 111211111200281. The reversal of 111211111200222 is 222002111112111.

It is a happy number.

111211111200222 is a `hidden beast` number, since 11 + 121 + 1 + 111 + 200 + 222 = 666.

It is a super-2 number, since 2×111211111200222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111211111200195 and 111211111200204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77607194818 + ... + 77607196250.

It is an arithmetic number, because the mean of its divisors is an integer number (1375778928888).

Almost surely, 2^{111211111200222} is an apocalyptic number.

111211111200222 is an abundant number, since it is smaller than the sum of its proper divisors (152938443146274).

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

111211111200222 is a wasteful number, since it uses less digits than its factorization.

111211111200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3692 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111211111200222 its reverse (222002111112111), we get a palindrome (333213222312333).

The spelling of 111211111200222 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred eleven million, two hundred thousand, two hundred twenty-two".