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22011013201 = 191158474379
BaseRepresentation
bin10100011111111101…
…010110100001010001
32002210222121022202011
4110133331112201101
5330034304410301
614040044222521
71406311345102
oct243775264121
962728538664
1022011013201
119375709001
12432353aa41
1320ca209a88
1410cb40a3a9
1588c5a6a51
hex51ff56851

22011013201 has 4 divisors (see below), whose sum is σ = 23169487600. Its totient is φ = 20852538804.

The previous prime is 22011013187. The next prime is 22011013223. The reversal of 22011013201 is 10231011022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10231011022 = 25115505511.

It is a cyclic number.

It is not a de Polignac number, because 22011013201 - 211 = 22011011153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011013231) 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 3 ways as a sum of consecutive naturals, for example, 579237171 + ... + 579237208.

It is an arithmetic number, because the mean of its divisors is an integer number (5792371900).

Almost surely, 222011013201 is an apocalyptic number.

It is an amenable number.

22011013201 is a deficient number, since it is larger than the sum of its proper divisors (1158474399).

22011013201 is a wasteful number, since it uses less digits than its factorization.

22011013201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158474398.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22011013201 its reverse (10231011022), we get a palindrome (32242024223).

The spelling of 22011013201 in words is "twenty-two billion, eleven million, thirteen thousand, two hundred one".

Divisors: 1 19 1158474379 22011013201