200121020222231 has 2 divisors, whose sum is σ = 200121020222232. Its totient is φ = 200121020222230.

The previous prime is 200121020222219. The next prime is 200121020222273. The reversal of 200121020222231 is 132222020121002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200121020222231 - 2¹⁸ = 200121019960087 is a prime.

It is a super-2 number, since 2×200121020222231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121020222281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060510111115 + 100060510111116.

It is an arithmetic number, because the mean of its divisors is an integer number (100060510111116).

Almost surely, 2^{200121020222231} is an apocalyptic number.

200121020222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121020222231 is an equidigital number, since it uses as much as digits as its factorization.

200121020222231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 200121020222231 its reverse (132222020121002), we get a palindrome (332343040343233).

The spelling of 200121020222231 in words is "two hundred trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, two hundred thirty-one".