111422022012 has 384 divisors, whose sum is σ = 354248294400. Its totient is φ = 29581396992.

The previous prime is 111422022007. The next prime is 111422022077. The reversal of 111422022012 is 210220224111.

111422022012 is a `hidden beast` number, since 1 + 11 + 422 + 0 + 220 + 12 = 666.

It is a super-2 number, since 2×111422022012² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 187895188 + ... + 187895780.

It is an arithmetic number, because the mean of its divisors is an integer number (922521600).

Almost surely, 2^111422022012 is an apocalyptic number.

111422022012 is a gapful number since it is divisible by the number (12) 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 111422022012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177124147200).

111422022012 is an abundant number, since it is smaller than the sum of its proper divisors (242826272388).

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

111422022012 is a wasteful number, since it uses less digits than its factorization.

111422022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 854 counting only the distinct ones).

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

Adding to 111422022012 its reverse (210220224111), we get a palindrome (321642246123).

The spelling of 111422022012 in words is "one hundred eleven billion, four hundred twenty-two million, twenty-two thousand, twelve".