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22012022001 = 39078089681
BaseRepresentation
bin10100100000000001…
…001100110011110001
32002211001111120120010
4110200001030303301
5330040034201001
614040122005133
71406323046154
oct244001146361
962731446503
1022012022001
119376237a22
1243239467a9
1320ca4a0cb8
1410cb5cdc9b
1588c7058d6
hex52004ccf1

22012022001 has 8 divisors (see below), whose sum is σ = 29381725024. Its totient is φ = 14658500160.

The previous prime is 22012021979. The next prime is 22012022003. The reversal of 22012022001 is 10022021022.

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

It is not a de Polignac number, because 22012022001 - 26 = 22012021937 is a prime.

It is a super-2 number, since 2×220120220012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22012022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4042120 + ... + 4047561.

It is an arithmetic number, because the mean of its divisors is an integer number (3672715628).

Almost surely, 222012022001 is an apocalyptic number.

It is an amenable number.

22012022001 is a deficient number, since it is larger than the sum of its proper divisors (7369703023).

22012022001 is an equidigital number, since it uses as much as digits as its factorization.

22012022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8090591.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22012022001 its reverse (10022021022), we get a palindrome (32034043023).

It can be divided in two parts, 2201 and 2022001, that added together give a palindrome (2024202).

The spelling of 22012022001 in words is "twenty-two billion, twelve million, twenty-two thousand, one".

Divisors: 1 3 907 2721 8089681 24269043 7337340667 22012022001