200020021011 has 12 divisors (see below), whose sum is σ = 288976157392. Its totient is φ = 133319750256.

The previous prime is 200020021007. The next prime is 200020021027. The reversal of 200020021011 is 110120020002.

It is not a de Polignac number, because 200020021011 - 2² = 200020021007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200020020984 and 200020021002.

It is not an unprimeable number, because it can be changed into a prime (200020021001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2197111 + ... + 2286336.

Almost surely, 2^200020021011 is an apocalyptic number.

200020021011 is a deficient number, since it is larger than the sum of its proper divisors (88956136381).

200020021011 is a wasteful number, since it uses less digits than its factorization.

200020021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488410 (or 4488407 counting only the distinct ones).

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

Adding to 200020021011 its reverse (110120020002), we get a palindrome (310140041013).

The spelling of 200020021011 in words is "two hundred billion, twenty million, twenty-one thousand, eleven".