200021012046 has 12 divisors (see below), whose sum is σ = 433378859472. Its totient is φ = 66673670676.

The previous prime is 200021012017. The next prime is 200021012047. The reversal of 200021012046 is 640210120002.

It is a super-2 number, since 2×200021012046² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11112278447 = 200021012046 / (2 + 0 + 0 + 0 + 2 + 1 + 0 + 1 + 2 + 0 + 4 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021012047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5556139206 + ... + 5556139241.

It is an arithmetic number, because the mean of its divisors is an integer number (36114904956).

Almost surely, 2^200021012046 is an apocalyptic number.

200021012046 is an abundant number, since it is smaller than the sum of its proper divisors (233357847426).

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

200021012046 is a wasteful number, since it uses less digits than its factorization.

200021012046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112278455 (or 11112278452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200021012046 its reverse (640210120002), we get a palindrome (840231132048).

The spelling of 200021012046 in words is "two hundred billion, twenty-one million, twelve thousand, forty-six".