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22411221401 = 221310127077
BaseRepresentation
bin10100110111110100…
…000001100110011001
32010211212200000012002
4110313310001212121
5331344233041101
614143502130345
71422241144622
oct246764014631
963755600162
1022411221401
119560606388
1244155809b5
1321620c206a
141128626a49
158b27abd6b
hex537d01999

22411221401 has 4 divisors (see below), whose sum is σ = 22421350692. Its totient is φ = 22401092112.

The previous prime is 22411221389. The next prime is 22411221403. The reversal of 22411221401 is 10412211422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10412211422 = 25206105711.

It can be written as a sum of positive squares in 2 ways, for example, as 18723817225 + 3687404176 = 136835^2 + 60724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22411221401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22411221403) 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, 5061326 + ... + 5065751.

It is an arithmetic number, because the mean of its divisors is an integer number (5605337673).

Almost surely, 222411221401 is an apocalyptic number.

It is an amenable number.

22411221401 is a deficient number, since it is larger than the sum of its proper divisors (10129291).

22411221401 is a wasteful number, since it uses less digits than its factorization.

22411221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10129290.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22411221401 its reverse (10412211422), we get a palindrome (32823432823).

The spelling of 22411221401 in words is "twenty-two billion, four hundred eleven million, two hundred twenty-one thousand, four hundred one".

Divisors: 1 2213 10127077 22411221401