111212220222000 has 240 divisors, whose sum is σ = 390379122619200. Its totient is φ = 29507563008000.

The previous prime is 111212220221911. The next prime is 111212220222053. The reversal of 111212220222000 is 222022212111.

It is a happy number.

111212220222000 is a `hidden beast` number, since 1 + 11 + 212 + 220 + 2 + 220 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11941761 + ... + 19105760.

It is an arithmetic number, because the mean of its divisors is an integer number (1626579677580).

Almost surely, 2^{111212220222000} is an apocalyptic number.

111212220222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111212220222000 is an abundant number, since it is smaller than the sum of its proper divisors (279166902397200).

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

111212220222000 is a wasteful number, since it uses less digits than its factorization.

111212220222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31047749 (or 31047730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111212220222000 its reverse (222022212111), we get a palindrome (111434242434111).

The spelling of 111212220222000 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand".