1000200021010 has 16 divisors (see below), whose sum is σ = 1800921130200. Its totient is φ = 399955321216.

The previous prime is 1000200020971. The next prime is 1000200021019. The reversal of 1000200021010 is 101200020001.

It can be written as a sum of positive squares in 4 ways, for example, as 943445058721 + 56754962289 = 971311^2 + 238233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000200020984 and 1000200021002.

It is not an unprimeable number, because it can be changed into a prime (1000200021019) 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, 15552205 + ... + 15616384.

Almost surely, 2^{1000200021010} is an apocalyptic number.

1000200021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000200021010 is a deficient number, since it is larger than the sum of its proper divisors (800721109190).

1000200021010 is a wasteful number, since it uses less digits than its factorization.

1000200021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31171805.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1000200021010 its reverse (101200020001), we get a palindrome (1101400041011).

The spelling of 1000200021010 in words is "one trillion, two hundred million, twenty-one thousand, ten".