122210010202221 has 6 divisors (see below), whose sum is σ = 176525570292110. Its totient is φ = 81473340134808.

The previous prime is 122210010202207. The next prime is 122210010202229. The reversal of 122210010202221 is 122202010012221.

It is a happy number.

122210010202221 is a `hidden beast` number, since 1 + 22 + 210 + 0 + 10 + 202 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101822428304100 + 20387581898121 = 10090710^2 + 4515261^2 .

It is not a de Polignac number, because 122210010202221 - 2⁹ = 122210010201709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122210010202194 and 122210010202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210010202229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6789445011226 + ... + 6789445011243.

Almost surely, 2^{122210010202221} is an apocalyptic number.

It is an amenable number.

122210010202221 is a deficient number, since it is larger than the sum of its proper divisors (54315560089889).

122210010202221 is a wasteful number, since it uses less digits than its factorization.

122210010202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13578890022475 (or 13578890022472 counting only the distinct ones).

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

Adding to 122210010202221 its reverse (122202010012221), we get a palindrome (244412020214442).

The spelling of 122210010202221 in words is "one hundred twenty-two trillion, two hundred ten billion, ten million, two hundred two thousand, two hundred twenty-one".