200122100010 has 240 divisors, whose sum is σ = 653178784896. Its totient is φ = 43753203648.

The previous prime is 200122099997. The next prime is 200122100011. The reversal of 200122100010 is 10001221002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200122099965 and 200122100001.

It is not an unprimeable number, because it can be changed into a prime (200122100011) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 803259 + ... + 1022481.

Almost surely, 2^200122100010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200122100010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326589392448).

200122100010 is an abundant number, since it is smaller than the sum of its proper divisors (453056684886).

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

200122100010 is a wasteful number, since it uses less digits than its factorization.

200122100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219279 (or 219263 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200122100010 its reverse (10001221002), we get a palindrome (210123321012).

The spelling of 200122100010 in words is "two hundred billion, one hundred twenty-two million, one hundred thousand, ten".