200222421 has 16 divisors (see below), whose sum is σ = 308066304. Its totient is φ = 113300784.

The previous prime is 200222389. The next prime is 200222423. The reversal of 200222421 is 124222002.

It is not a de Polignac number, because 200222421 - 2⁵ = 200222389 is a prime.

It is a super-2 number, since 2×200222421² = 80178035742202482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200222421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200222423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44121 + ... + 48446.

It is an arithmetic number, because the mean of its divisors is an integer number (19254144).

Almost surely, 2^200222421 is an apocalyptic number.

200222421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200222421 is a deficient number, since it is larger than the sum of its proper divisors (107843883).

200222421 is a wasteful number, since it uses less digits than its factorization.

200222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92680.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 200222421 is about 14149.9972084803. The cubic root of 200222421 is about 585.0202549784.

Adding to 200222421 its reverse (124222002), we get a palindrome (324444423).

The spelling of 200222421 in words is "two hundred million, two hundred twenty-two thousand, four hundred twenty-one".