2221202211201 has 40 divisors (see below), whose sum is σ = 3369460342248. Its totient is φ = 1458038880000.

The previous prime is 2221202211169. The next prime is 2221202211307. The reversal of 2221202211201 is 1021122021222.

It is a happy number.

2221202211201 is a `hidden beast` number, since 2 + 221 + 20 + 221 + 1 + 201 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 312440976 + 2220889770225 = 17676^2 + 1490265^2 .

It is not a de Polignac number, because 2221202211201 - 2⁵ = 2221202211169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221202211601) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 730741 + ... + 2230781.

Almost surely, 2^{2221202211201} is an apocalyptic number.

It is an amenable number.

2221202211201 is a deficient number, since it is larger than the sum of its proper divisors (1148258131047).

2221202211201 is a wasteful number, since it uses less digits than its factorization.

2221202211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500335 (or 1500326 counting only the distinct ones).

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

Adding to 2221202211201 its reverse (1021122021222), we get a palindrome (3242324232423).

The spelling of 2221202211201 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred eleven thousand, two hundred one".