222120001221201 has 12 divisors (see below), whose sum is σ = 320856102790912. Its totient is φ = 148072569570936.

The previous prime is 222120001221191. The next prime is 222120001221203. The reversal of 222120001221201 is 102122100021222.

It is a happy number.

222120001221201 is a `hidden beast` number, since 2 + 221 + 20 + 0 + 0 + 1 + 221 + 201 = 666.

It is not a de Polignac number, because 222120001221201 - 2¹⁷ = 222120001090129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120001221203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619080961 + ... + 619439646.

Almost surely, 2^{222120001221201} is an apocalyptic number.

It is an amenable number.

222120001221201 is a deficient number, since it is larger than the sum of its proper divisors (98736101569711).

222120001221201 is a wasteful number, since it uses less digits than its factorization.

222120001221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238540540 (or 1238540537 counting only the distinct ones).

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

Adding to 222120001221201 its reverse (102122100021222), we get a palindrome (324242101242423).

The spelling of 222120001221201 in words is "two hundred twenty-two trillion, one hundred twenty billion, one million, two hundred twenty-one thousand, two hundred one".