200220210022121 has 4 divisors (see below), whose sum is σ = 200524034317200. Its totient is φ = 199916385727044.

The previous prime is 200220210022109. The next prime is 200220210022127. The reversal of 200220210022121 is 121220012022002.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-200220210022121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200220210022121.

It is not an unprimeable number, because it can be changed into a prime (200220210022127) 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, 151912146551 + ... + 151912147868.

It is an arithmetic number, because the mean of its divisors is an integer number (50131008579300).

Almost surely, 2^{200220210022121} is an apocalyptic number.

It is an amenable number.

200220210022121 is a deficient number, since it is larger than the sum of its proper divisors (303824295079).

200220210022121 is an equidigital number, since it uses as much as digits as its factorization.

200220210022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303824295078.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200220210022121 its reverse (121220012022002), we get a palindrome (321440222044123).

The spelling of 200220210022121 in words is "two hundred trillion, two hundred twenty billion, two hundred ten million, twenty-two thousand, one hundred twenty-one".