200022001021 has 4 divisors (see below), whose sum is σ = 200362754592. Its totient is φ = 199681247452.

The previous prime is 200022000979. The next prime is 200022001061. The reversal of 200022001021 is 120100220002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200022001021 - 2¹³ = 200021992829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200022000989 and 200022001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200022001061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170375905 + ... + 170377078.

It is an arithmetic number, because the mean of its divisors is an integer number (50090688648).

Almost surely, 2^200022001021 is an apocalyptic number.

It is an amenable number.

200022001021 is a deficient number, since it is larger than the sum of its proper divisors (340753571).

200022001021 is an equidigital number, since it uses as much as digits as its factorization.

200022001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340753570.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200022001021 its reverse (120100220002), we get a palindrome (320122221023).

The spelling of 200022001021 in words is "two hundred billion, twenty-two million, one thousand, twenty-one".