200221101121 has 2 divisors, whose sum is σ = 200221101122. Its totient is φ = 200221101120.

The previous prime is 200221101097. The next prime is 200221101133. The reversal of 200221101121 is 121101122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167555960896 + 32665140225 = 409336^2 + 180735^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221101121 - 2²⁹ = 199684230209 is a prime.

It is not a weakly prime, because it can be changed into another prime (200221101151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110550560 + 100110550561.

It is an arithmetic number, because the mean of its divisors is an integer number (100110550561).

Almost surely, 2^200221101121 is an apocalyptic number.

It is an amenable number.

200221101121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221101121 is an equidigital number, since it uses as much as digits as its factorization.

200221101121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200221101121 its reverse (121101122002), we get a palindrome (321322223123).

The spelling of 200221101121 in words is "two hundred billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty-one".