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12222031103 = 27894382227
BaseRepresentation
bin10110110000111110…
…10110010011111111
31011112202220111202122
423120133112103333
5200012314443403
65340440313155
7611605356512
oct133037262377
934482814678
1012222031103
115202021957
1224511727bb
1311ca163889
1483d2d6d79
154b7ecc838
hex2d87d64ff

12222031103 has 4 divisors (see below), whose sum is σ = 12226416120. Its totient is φ = 12217646088.

The previous prime is 12222031097. The next prime is 12222031117. The reversal of 12222031103 is 30113022221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12222031103 - 212 = 12222027007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222031183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188325 + ... + 2193902.

It is an arithmetic number, because the mean of its divisors is an integer number (3056604030).

Almost surely, 212222031103 is an apocalyptic number.

12222031103 is a deficient number, since it is larger than the sum of its proper divisors (4385017).

12222031103 is an equidigital number, since it uses as much as digits as its factorization.

12222031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385016.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12222031103 its reverse (30113022221), we get a palindrome (42335053324).

The spelling of 12222031103 in words is "twelve billion, two hundred twenty-two million, thirty-one thousand, one hundred three".

Divisors: 1 2789 4382227 12222031103