200122101221 has 4 divisors (see below), whose sum is σ = 228710972832. Its totient is φ = 171533229612.

The previous prime is 200122101149. The next prime is 200122101227. The reversal of 200122101221 is 122101221002.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122101221002 = 2 ⋅61050610501.

It is a cyclic number.

It is not a de Polignac number, because 200122101221 - 2¹⁸ = 200121839077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200122101196 and 200122101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122101227) 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, 14294435795 + ... + 14294435808.

It is an arithmetic number, because the mean of its divisors is an integer number (57177743208).

Almost surely, 2^200122101221 is an apocalyptic number.

It is an amenable number.

200122101221 is a deficient number, since it is larger than the sum of its proper divisors (28588871611).

200122101221 is an equidigital number, since it uses as much as digits as its factorization.

200122101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588871610.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200122101221 its reverse (122101221002), we get a palindrome (322223322223).

The spelling of 200122101221 in words is "two hundred billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty-one".