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22111011001 = 101637934319
BaseRepresentation
bin10100100101111010…
…110100000010111001
32010001221202201221101
4110211322310002321
5330240404323001
614054015411401
71411634330632
oct244572640271
963057681841
1022111011001
1194170a8912
124350b23b61
132114b4c581
1410da7da889
1589625aa01
hex525eb40b9

22111011001 has 8 divisors (see below), whose sum is σ = 22334083200. Its totient is φ = 21888020400.

The previous prime is 22111010941. The next prime is 22111011007. The reversal of 22111011001 is 10011011122.

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

It is a cyclic number.

It is not a de Polignac number, because 22111011001 - 29 = 22111010489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111011007) 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, 627120 + ... + 661438.

It is an arithmetic number, because the mean of its divisors is an integer number (2791760400).

Almost surely, 222111011001 is an apocalyptic number.

It is an amenable number.

22111011001 is a deficient number, since it is larger than the sum of its proper divisors (223072199).

22111011001 is a wasteful number, since it uses less digits than its factorization.

22111011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40799.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 22111011001 its reverse (10011011122), we get a palindrome (32122022123).

The spelling of 22111011001 in words is "twenty-two billion, one hundred eleven million, eleven thousand, one".

Divisors: 1 101 6379 34319 644279 3466219 218920901 22111011001