200200111121020 has 24 divisors (see below), whose sum is σ = 420440001055200. Its totient is φ = 80076279172032.

The previous prime is 200200111121011. The next prime is 200200111121027. The reversal of 200200111121020 is 20121111002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200111121027) 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, 234893760 + ... + 235744519.

It is an arithmetic number, because the mean of its divisors is an integer number (17518333377300).

Almost surely, 2^{200200111121020} is an apocalyptic number.

200200111121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200200111121020 is an abundant number, since it is smaller than the sum of its proper divisors (220239889934180).

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

200200111121020 is a wasteful number, since it uses less digits than its factorization.

200200111121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470659557 (or 470659555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200200111121020 its reverse (20121111002002), we get a palindrome (220321222123022).

The spelling of 200200111121020 in words is "two hundred trillion, two hundred billion, one hundred eleven million, one hundred twenty-one thousand, twenty".