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10312211222 = 25156105611
BaseRepresentation
bin10011001101010011…
…11101101100010110
3222121200020121101222
421212221331230112
5132104411224342
64423134250342
7513355230515
oct114651755426
928550217358
1010312211222
114411a79a15
121bb96569b2
13c845a2441
146db7d467c
154054ceed2
hex266a7db16

10312211222 has 4 divisors (see below), whose sum is σ = 15468316836. Its totient is φ = 5156105610.

The previous prime is 10312211209. The next prime is 10312211249. The reversal of 10312211222 is 22211221301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22211221301 = 139159792959.

It is a self number, because there is not a number n which added to its sum of digits gives 10312211222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2578052804 + ... + 2578052807.

It is an arithmetic number, because the mean of its divisors is an integer number (3867079209).

Almost surely, 210312211222 is an apocalyptic number.

10312211222 is a deficient number, since it is larger than the sum of its proper divisors (5156105614).

10312211222 is an equidigital number, since it uses as much as digits as its factorization.

10312211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156105613.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10312211222 its reverse (22211221301), we get a palindrome (32523432523).

The spelling of 10312211222 in words is "ten billion, three hundred twelve million, two hundred eleven thousand, two hundred twenty-two".

Divisors: 1 2 5156105611 10312211222