202202122022221 has 8 divisors (see below), whose sum is σ = 208737598087424. Its totient is φ = 195667447642560.

The previous prime is 202202122022213. The next prime is 202202122022291. The reversal of 202202122022221 is 122220221202202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202202122022221 - 2³ = 202202122022213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202202122022192 and 202202122022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202122022291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199908771 + ... + 200917696.

It is an arithmetic number, because the mean of its divisors is an integer number (26092199760928).

Almost surely, 2^{202202122022221} is an apocalyptic number.

It is an amenable number.

202202122022221 is a deficient number, since it is larger than the sum of its proper divisors (6535476065203).

202202122022221 is a wasteful number, since it uses less digits than its factorization.

202202122022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400842771.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 202202122022221 its reverse (122220221202202), we get a palindrome (324422343224423).

The spelling of 202202122022221 in words is "two hundred two trillion, two hundred two billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty-one".