200012021010 has 80 divisors (see below), whose sum is σ = 537878906136. Its totient is φ = 53329715712.

The previous prime is 200012020997. The next prime is 200012021087. The reversal of 200012021010 is 10120210002.

It can be written as a sum of positive squares in 4 ways, for example, as 185746346289 + 14265674721 = 430983^2 + 119439^2 .

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 = 200012020983 and 200012021001.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11490874 + ... + 11508266.

Almost surely, 2^200012021010 is an apocalyptic number.

200012021010 is an abundant number, since it is smaller than the sum of its proper divisors (337866885126).

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

200012021010 is a wasteful number, since it uses less digits than its factorization.

200012021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31609 (or 31600 counting only the distinct ones).

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

Adding to 200012021010 its reverse (10120210002), we get a palindrome (210132231012).

The spelling of 200012021010 in words is "two hundred billion, twelve million, twenty-one thousand, ten".