200010022021 has 4 divisors (see below), whose sum is σ = 211775317452. Its totient is φ = 188244726592.

The previous prime is 200010021989. The next prime is 200010022039. The reversal of 200010022021 is 120220010002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120220010002 = 2 ⋅60110005001.

It can be written as a sum of positive squares in 2 ways, for example, as 107116125796 + 92893896225 = 327286^2 + 304785^2 .

It is a cyclic number.

It is not a de Polignac number, because 200010022021 - 2⁵ = 200010021989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200010021989 and 200010022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200010122021) 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, 5882647690 + ... + 5882647723.

It is an arithmetic number, because the mean of its divisors is an integer number (52943829363).

Almost surely, 2^200010022021 is an apocalyptic number.

It is an amenable number.

200010022021 is a deficient number, since it is larger than the sum of its proper divisors (11765295431).

200010022021 is a wasteful number, since it uses less digits than its factorization.

200010022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11765295430.

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

Adding to 200010022021 its reverse (120220010002), we get a palindrome (320230032023).

The spelling of 200010022021 in words is "two hundred billion, ten million, twenty-two thousand, twenty-one".