122312113021000 has 128 divisors (see below), whose sum is σ = 327127648723200. Its totient is φ = 41931721075200.

The previous prime is 122312113020949. The next prime is 122312113021003. The reversal of 122312113021000 is 120311213221.

It is not an unprimeable number, because it can be changed into a prime (122312113021003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75760191 + ... + 77357809.

It is an arithmetic number, because the mean of its divisors is an integer number (2555684755650).

Almost surely, 2^{122312113021000} is an apocalyptic number.

122312113021000 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 122312113021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163563824361600).

122312113021000 is an abundant number, since it is smaller than the sum of its proper divisors (204815535702200).

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

122312113021000 is a wasteful number, since it uses less digits than its factorization.

122312113021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608584 (or 1608570 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122312113021000 its reverse (120311213221), we get a palindrome (122432424234221).

The spelling of 122312113021000 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred thirteen million, twenty-one thousand".