200221022021 has 12 divisors (see below), whose sum is σ = 212091237792. Its totient is φ = 188657218728.

The previous prime is 200221021999. The next prime is 200221022033. The reversal of 200221022021 is 120220122002.

It is not a de Polignac number, because 200221022021 - 2¹⁴ = 200221005637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221021987 and 200221022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221022081) 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, 866375 + ... + 1072868.

It is an arithmetic number, because the mean of its divisors is an integer number (17674269816).

Almost surely, 2^200221022021 is an apocalyptic number.

It is an amenable number.

200221022021 is a deficient number, since it is larger than the sum of its proper divisors (11870215771).

200221022021 is an equidigital number, since it uses as much as digits as its factorization.

200221022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939400 (or 1939333 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200221022021 its reverse (120220122002), we get a palindrome (320441144023).

The spelling of 200221022021 in words is "two hundred billion, two hundred twenty-one million, twenty-two thousand, twenty-one".