120001220200 has 24 divisors (see below), whose sum is σ = 279002837430. Its totient is φ = 48000488000.

The previous prime is 120001220153. The next prime is 120001220203. The reversal of 120001220200 is 2022100021.

It can be written as a sum of positive squares in 3 ways, for example, as 46279195876 + 73722024324 = 215126^2 + 271518^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (120001220203) 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, 300002851 + ... + 300003250.

Almost surely, 2^120001220200 is an apocalyptic number.

120001220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001220200 is an abundant number, since it is smaller than the sum of its proper divisors (159001617230).

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

120001220200 is a wasteful number, since it uses less digits than its factorization.

120001220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600006117 (or 600006108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120001220200 its reverse (2022100021), we get a palindrome (122023320221).

The spelling of 120001220200 in words is "one hundred twenty billion, one million, two hundred twenty thousand, two hundred".