200002011100021 has 16 divisors (see below), whose sum is σ = 217610390718000. Its totient is φ = 182711344693248.

The previous prime is 200002011099929. The next prime is 200002011100027. The reversal of 200002011100021 is 120001110200002.

It can be written as a sum of positive squares in 8 ways, for example, as 1138145451921 + 198863865648100 = 1066839^2 + 14101910^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002011100021 - 2¹³ = 200002011091829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200002011099980 and 200002011100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200002011100027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89497845 + ... + 91705333.

It is an arithmetic number, because the mean of its divisors is an integer number (13600649419875).

Almost surely, 2^{200002011100021} is an apocalyptic number.

It is an amenable number.

200002011100021 is a deficient number, since it is larger than the sum of its proper divisors (17608379617979).

200002011100021 is a wasteful number, since it uses less digits than its factorization.

200002011100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279448.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200002011100021 its reverse (120001110200002), we get a palindrome (320003121300023).

The spelling of 200002011100021 in words is "two hundred trillion, two billion, eleven million, one hundred thousand, twenty-one".