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22221300401 = 137223727351
BaseRepresentation
bin10100101100011111…
…100010001010110001
32010100122022000112222
4110230133202022301
5331002123103101
614112555330425
71414443636236
oct245437421261
963318260488
1022221300401
119473387983
124381a50a15
132131956581
14110b30978d
158a0c9401b
hex52c7e22b1

22221300401 has 8 divisors (see below), whose sum is σ = 22483905024. Its totient is φ = 21960151200.

The previous prime is 22221300391. The next prime is 22221300403. The reversal of 22221300401 is 10400312222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22221300401 is a prime.

It is a super-2 number, since 2×222213004012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221300401.

It is not an unprimeable number, because it can be changed into a prime (22221300403) 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 7 ways as a sum of consecutive naturals, for example, 333125 + ... + 394226.

It is an arithmetic number, because the mean of its divisors is an integer number (2810488128).

Almost surely, 222221300401 is an apocalyptic number.

It is an amenable number.

22221300401 is a deficient number, since it is larger than the sum of its proper divisors (262604623).

22221300401 is a wasteful number, since it uses less digits than its factorization.

22221300401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727711.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221300401 its reverse (10400312222), we get a palindrome (32621612623).

The spelling of 22221300401 in words is "twenty-two billion, two hundred twenty-one million, three hundred thousand, four hundred one".

Divisors: 1 137 223 30551 727351 99647087 162199273 22221300401