13772220001 has 4 divisors (see below), whose sum is σ = 13772860612. Its totient is φ = 13771579392.

The previous prime is 13772219987. The next prime is 13772220023. The reversal of 13772220001 is 10002227731.

13772220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 593409600 + 13178810401 = 24360^2 + 114799^2 .

It is a cyclic number.

It is not a de Polignac number, because 13772220001 - 2⁵ = 13772219969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13772220601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286896 + ... + 331441.

It is an arithmetic number, because the mean of its divisors is an integer number (3443215153).

Almost surely, 2^13772220001 is an apocalyptic number.

It is an amenable number.

13772220001 is a deficient number, since it is larger than the sum of its proper divisors (640611).

13772220001 is an equidigital number, since it uses as much as digits as its factorization.

13772220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640610.

The product of its (nonzero) digits is 1176, while the sum is 25.

Adding to 13772220001 its reverse (10002227731), we get a palindrome (23774447732).

The spelling of 13772220001 in words is "thirteen billion, seven hundred seventy-two million, two hundred twenty thousand, one".