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2211102212321 = 7976136778759
BaseRepresentation
bin100000001011001111111…
…101100100000011100001
321211101020111220100122102
4200023033331210003201
5242211314131243241
64411433310020145
7315514113463022
oct40131775440341
97741214810572
102211102212321
117827a5612472
122b86397a7655
13130676a17642
147903724ac49
153c7b0e8139b
hex202cff640e1

2211102212321 has 8 divisors (see below), whose sum is σ = 2242033209600. Its totient is φ = 2180244774240.

The previous prime is 2211102212309. The next prime is 2211102212329. The reversal of 2211102212321 is 1232122011122.

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-2211102212321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211102212293 and 2211102212302.

It is not an unprimeable number, because it can be changed into a prime (2211102212329) 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 7 ways as a sum of consecutive naturals, for example, 18329261 + ... + 18449498.

It is an arithmetic number, because the mean of its divisors is an integer number (280254151200).

Almost surely, 22211102212321 is an apocalyptic number.

It is an amenable number.

2211102212321 is a deficient number, since it is larger than the sum of its proper divisors (30930997279).

2211102212321 is an equidigital number, since it uses as much as digits as its factorization.

2211102212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36779599.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2211102212321 its reverse (1232122011122), we get a palindrome (3443224223443).

The spelling of 2211102212321 in words is "two trillion, two hundred eleven billion, one hundred two million, two hundred twelve thousand, three hundred twenty-one".

Divisors: 1 79 761 60119 36778759 2905521961 27988635599 2211102212321