202222101001221 has 48 divisors (see below), whose sum is σ = 345731488247808. Its totient is φ = 111503945296800.

The previous prime is 202222101001211. The next prime is 202222101001241. The reversal of 202222101001221 is 122100101222202.

It is a happy number.

202222101001221 is a `hidden beast` number, since 2 + 0 + 222 + 210 + 10 + 0 + 1 + 221 = 666.

It is not a de Polignac number, because 202222101001221 - 2¹⁰ = 202222101000197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202222101001194 and 202222101001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222101001211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 480741915 + ... + 481162376.

It is an arithmetic number, because the mean of its divisors is an integer number (7202739338496).

Almost surely, 2^{202222101001221} is an apocalyptic number.

202222101001221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202222101001221 is a deficient number, since it is larger than the sum of its proper divisors (143509387246587).

202222101001221 is a wasteful number, since it uses less digits than its factorization.

202222101001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961904422 (or 961904419 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202222101001221 its reverse (122100101222202), we get a palindrome (324322202223423).

The spelling of 202222101001221 in words is "two hundred two trillion, two hundred twenty-two billion, one hundred one million, one thousand, two hundred twenty-one".