200122001200 has 120 divisors (see below), whose sum is σ = 524664115776. Its totient is φ = 72749088000.

The previous prime is 200122001159. The next prime is 200122001243. The reversal of 200122001200 is 2100221002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22008655 + ... + 22017745.

Almost surely, 2^200122001200 is an apocalyptic number.

200122001200 is a gapful number since it is divisible by the number (20) 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 200122001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262332057888).

200122001200 is an abundant number, since it is smaller than the sum of its proper divisors (324542114576).

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

200122001200 is a wasteful number, since it uses less digits than its factorization.

200122001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14123 (or 14112 counting only the distinct ones).

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

Adding to 200122001200 its reverse (2100221002), we get a palindrome (202222222202).

It can be divided in two parts, 20012 and 2001200, that multiplied together give a square (40048014400 = 200120²).

The spelling of 200122001200 in words is "two hundred billion, one hundred twenty-two million, one thousand, two hundred".