200122221312 has 216 divisors, whose sum is σ = 648405479904. Its totient is φ = 58898644992.

The previous prime is 200122221263. The next prime is 200122221347. The reversal of 200122221312 is 213122221002.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 543648 + ... + 834144.

Almost surely, 2^200122221312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200122221312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324202739952).

200122221312 is an abundant number, since it is smaller than the sum of its proper divisors (448283258592).

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

200122221312 is a wasteful number, since it uses less digits than its factorization.

200122221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290555 (or 290538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200122221312 its reverse (213122221002), we get a palindrome (413244442314).

The spelling of 200122221312 in words is "two hundred billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred twelve".