202211111102221 has 48 divisors (see below), whose sum is σ = 228824866149120. Its totient is φ = 178273447672320.

The previous prime is 202211111102201. The next prime is 202211111102261. The reversal of 202211111102221 is 122201111112202.

It is a happy number.

It is not a de Polignac number, because 202211111102221 - 2⁷ = 202211111102093 is a prime.

It is a super-2 number, since 2×202211111102221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202211111102201) 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, 18304612120 + ... + 18304623166.

It is an arithmetic number, because the mean of its divisors is an integer number (4767184711440).

Almost surely, 2^{202211111102221} is an apocalyptic number.

It is an amenable number.

202211111102221 is a deficient number, since it is larger than the sum of its proper divisors (26613755046899).

202211111102221 is a wasteful number, since it uses less digits than its factorization.

202211111102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17726 (or 17713 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202211111102221 its reverse (122201111112202), we get a palindrome (324412222214423).

The spelling of 202211111102221 in words is "two hundred two trillion, two hundred eleven billion, one hundred eleven million, one hundred two thousand, two hundred twenty-one".