122001221200 has 30 divisors (see below), whose sum is σ = 293107934894. Its totient is φ = 48800488320.

The previous prime is 122001221197. The next prime is 122001221201. The reversal of 122001221200 is 2122100221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 38093670976 + 83907550224 = 195176^2 + 289668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001221201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152501127 + ... + 152501926.

Almost surely, 2^122001221200 is an apocalyptic number.

122001221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001221200 is an abundant number, since it is smaller than the sum of its proper divisors (171106713694).

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

122001221200 is a wasteful number, since it uses less digits than its factorization.

122001221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305003071 (or 305003060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122001221200 its reverse (2122100221), we get a palindrome (124123321421).

The spelling of 122001221200 in words is "one hundred twenty-two billion, one million, two hundred twenty-one thousand, two hundred".