122202121200 has 120 divisors (see below), whose sum is σ = 398840262768. Its totient is φ = 31972362240.

The previous prime is 122202121177. The next prime is 122202121201. The reversal of 122202121200 is 2121202221.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122202121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202121201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 897109 + ... + 1024308.

Almost surely, 2^122202121200 is an apocalyptic number.

122202121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122202121200 is an abundant number, since it is smaller than the sum of its proper divisors (276638141568).

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

122202121200 is a wasteful number, since it uses less digits than its factorization.

122202121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921491 (or 1921480 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122202121200 its reverse (2121202221), we get a palindrome (124323323421).

The spelling of 122202121200 in words is "one hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, two hundred".