122112011000 has 256 divisors, whose sum is σ = 338721177600. Its totient is φ = 40315968000.

The previous prime is 122112010981. The next prime is 122112011003. The reversal of 122112011000 is 110211221.

It is a super-2 number, since 2×122112011000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112011003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123220505 + ... + 123221495.

It is an arithmetic number, because the mean of its divisors is an integer number (1323129600).

Almost surely, 2^122112011000 is an apocalyptic number.

122112011000 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 122112011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169360588800).

122112011000 is an abundant number, since it is smaller than the sum of its proper divisors (216609166600).

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

122112011000 is a wasteful number, since it uses less digits than its factorization.

122112011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122112011000 its reverse (110211221), we get a palindrome (122222222221).

The spelling of 122112011000 in words is "one hundred twenty-two billion, one hundred twelve million, eleven thousand".