200220100121 has 4 divisors (see below), whose sum is σ = 203613661200. Its totient is φ = 196826539044.

The previous prime is 200220100079. The next prime is 200220100127. The reversal of 200220100121 is 121001022002.

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 not a de Polignac number, because 200220100121 - 2¹⁰ = 200220099097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200220100127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696780451 + ... + 1696780568.

It is an arithmetic number, because the mean of its divisors is an integer number (50903415300).

Almost surely, 2^200220100121 is an apocalyptic number.

It is an amenable number.

200220100121 is a deficient number, since it is larger than the sum of its proper divisors (3393561079).

200220100121 is an equidigital number, since it uses as much as digits as its factorization.

200220100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393561078.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200220100121 its reverse (121001022002), we get a palindrome (321221122123).

The spelling of 200220100121 in words is "two hundred billion, two hundred twenty million, one hundred thousand, one hundred twenty-one".