122203111321200 has 480 divisors, whose sum is σ = 481855031526400. Its totient is φ = 25780226088960.

The previous prime is 122203111321183. The next prime is 122203111321243. The reversal of 122203111321200 is 2123111302221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 909459621 + ... + 909593979.

Almost surely, 2^{122203111321200} is an apocalyptic number.

122203111321200 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 122203111321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240927515763200).

122203111321200 is an abundant number, since it is smaller than the sum of its proper divisors (359651920205200).

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

122203111321200 is a wasteful number, since it uses less digits than its factorization.

122203111321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142729 (or 142718 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 122203111321200 its reverse (2123111302221), we get a palindrome (124326222623421).

The spelling of 122203111321200 in words is "one hundred twenty-two trillion, two hundred three billion, one hundred eleven million, three hundred twenty-one thousand, two hundred".