1201232200221 has 24 divisors (see below), whose sum is σ = 1755362088480. Its totient is φ = 791503596000.

The previous prime is 1201232200219. The next prime is 1201232200243. The reversal of 1201232200221 is 1220022321021.

1201232200221 is a `hidden beast` number, since 1 + 201 + 23 + 220 + 0 + 221 = 666.

It is not a de Polignac number, because 1201232200221 - 2¹ = 1201232200219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201232200194 and 1201232200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201232200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638131 + ... + 1676208.

It is an arithmetic number, because the mean of its divisors is an integer number (73140087020).

Almost surely, 2^{1201232200221} is an apocalyptic number.

It is an amenable number.

1201232200221 is a deficient number, since it is larger than the sum of its proper divisors (554129888259).

1201232200221 is a wasteful number, since it uses less digits than its factorization.

1201232200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315017 (or 2315014 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1201232200221 its reverse (1220022321021), we get a palindrome (2421254521242).

The spelling of 1201232200221 in words is "one trillion, two hundred one billion, two hundred thirty-two million, two hundred thousand, two hundred twenty-one".