200122221012 has 192 divisors, whose sum is σ = 563050414080. Its totient is φ = 54127194624.

The previous prime is 200122220999. The next prime is 200122221023. The reversal of 200122221012 is 210122221002.

It is a junction number, because it is equal to n+sod(n) for n = 200122220982 and 200122221000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25267189 + ... + 25275107.

It is an arithmetic number, because the mean of its divisors is an integer number (2932554240).

Almost surely, 2^200122221012 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 200122221012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281525207040).

200122221012 is an abundant number, since it is smaller than the sum of its proper divisors (362928193068).

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

200122221012 is a wasteful number, since it uses less digits than its factorization.

200122221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190 (or 8188 counting only the distinct ones).

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

Adding to 200122221012 its reverse (210122221002), we get a palindrome (410244442014).

The spelling of 200122221012 in words is "two hundred billion, one hundred twenty-two million, two hundred twenty-one thousand, twelve".