200031220100 has 72 divisors (see below), whose sum is σ = 445316602080. Its totient is φ = 77965390080.

The previous prime is 200031220063. The next prime is 200031220121. The reversal of 200031220100 is 1022130002.

It is a happy number.

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, 440831 + ... + 770969.

Almost surely, 2^200031220100 is an apocalyptic number.

200031220100 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 200031220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222658301040).

200031220100 is an abundant number, since it is smaller than the sum of its proper divisors (245285381980).

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

200031220100 is a wasteful number, since it uses less digits than its factorization.

200031220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330309 (or 330302 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 200031220100 its reverse (1022130002), we get a palindrome (201053350102).

The spelling of 200031220100 in words is "two hundred billion, thirty-one million, two hundred twenty thousand, one hundred".