12220220121201 has 24 divisors (see below), whose sum is σ = 18223749333504. Its totient is φ = 7882749809280.

The previous prime is 12220220121173. The next prime is 12220220121203. The reversal of 12220220121201 is 10212102202221.

It is a happy number.

12220220121201 is a `hidden beast` number, since 1 + 2 + 220 + 220 + 1 + 21 + 201 = 666.

It is not a de Polignac number, because 12220220121201 - 2⁵ = 12220220121169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12220220121203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1762776 + ... + 5248601.

It is an arithmetic number, because the mean of its divisors is an integer number (759322888896).

Almost surely, 2^{12220220121201} is an apocalyptic number.

It is an amenable number.

12220220121201 is a deficient number, since it is larger than the sum of its proper divisors (6003529212303).

12220220121201 is a wasteful number, since it uses less digits than its factorization.

12220220121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017661 (or 7017658 counting only the distinct ones).

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

Adding to 12220220121201 its reverse (10212102202221), we get a palindrome (22432322323422).

The spelling of 12220220121201 in words is "twelve trillion, two hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".