200100111020 has 24 divisors (see below), whose sum is σ = 422387496384. Its totient is φ = 79625327616.

The previous prime is 200100110981. The next prime is 200100111023. The reversal of 200100111020 is 20111001002.

It is a junction number, because it is equal to n+sod(n) for n = 200100110989 and 200100111007.

It is not an unprimeable number, because it can be changed into a prime (200100111023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25915844 + ... + 25923563.

It is an arithmetic number, because the mean of its divisors is an integer number (17599479016).

Almost surely, 2^200100111020 is an apocalyptic number.

200100111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200100111020 is an abundant number, since it is smaller than the sum of its proper divisors (222287385364).

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

200100111020 is a wasteful number, since it uses less digits than its factorization.

200100111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51839609 (or 51839607 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 200100111020 its reverse (20111001002), we get a palindrome (220211112022).

The spelling of 200100111020 in words is "two hundred billion, one hundred million, one hundred eleven thousand, twenty".