2202122301221 has 4 divisors (see below), whose sum is σ = 2213300587212. Its totient is φ = 2190944015232.

The previous prime is 2202122301209. The next prime is 2202122301227. The reversal of 2202122301221 is 1221032212022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1367893984900 + 834228316321 = 1169570^2 + 913361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202122301221 - 2³⁸ = 1927244394277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202122301193 and 2202122301202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202122301227) 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, 5589142700 + ... + 5589143093.

It is an arithmetic number, because the mean of its divisors is an integer number (553325146803).

Almost surely, 2^{2202122301221} is an apocalyptic number.

It is an amenable number.

2202122301221 is a deficient number, since it is larger than the sum of its proper divisors (11178285991).

2202122301221 is a wasteful number, since it uses less digits than its factorization.

2202122301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178285990.

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

Adding to 2202122301221 its reverse (1221032212022), we get a palindrome (3423154513243).

The spelling of 2202122301221 in words is "two trillion, two hundred two billion, one hundred twenty-two million, three hundred one thousand, two hundred twenty-one".