111212011022000 has 480 divisors, whose sum is σ = 329622809218560. Its totient is φ = 36085210560000.

The previous prime is 111212011021973. The next prime is 111212011022023. The reversal of 111212011022000 is 220110212111.

It is a super-2 number, since 2×111212011022000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 1807971245 + ... + 1808032755.

It is an arithmetic number, because the mean of its divisors is an integer number (686714185872).

Almost surely, 2^{111212011022000} is an apocalyptic number.

111212011022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111212011022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164811404609280).

111212011022000 is an abundant number, since it is smaller than the sum of its proper divisors (218410798196560).

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

111212011022000 is a wasteful number, since it uses less digits than its factorization.

111212011022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62538 (or 62515 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111212011022000 its reverse (220110212111), we get a palindrome (111432121234111).

The spelling of 111212011022000 in words is "one hundred eleven trillion, two hundred twelve billion, eleven million, twenty-two thousand".