11222222001201 has 12 divisors (see below), whose sum is σ = 17163398355012. Its totient is φ = 7041394196736.

The previous prime is 11222222001127. The next prime is 11222222001251. The reversal of 11222222001201 is 10210022222211.

It is a happy number.

11222222001201 is a `hidden beast` number, since 1 + 122 + 222 + 200 + 120 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4820993096976 + 6401228904225 = 2195676^2 + 2530065^2 .

It is not a de Polignac number, because 11222222001201 - 2¹⁷ = 11222221870129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222222001251) 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, 36673927956 + ... + 36673928261.

It is an arithmetic number, because the mean of its divisors is an integer number (1430283196251).

Almost surely, 2^{11222222001201} is an apocalyptic number.

It is an amenable number.

11222222001201 is a deficient number, since it is larger than the sum of its proper divisors (5941176353811).

11222222001201 is a wasteful number, since it uses less digits than its factorization.

11222222001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73347856240 (or 73347856237 counting only the distinct ones).

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

Adding to 11222222001201 its reverse (10210022222211), we get a palindrome (21432244223412).

The spelling of 11222222001201 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, one thousand, two hundred one".