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12223311331 = 711158744303
BaseRepresentation
bin10110110001001000…
…01110110111100011
31011112212022112220111
423120210032313203
5200013131430311
65340523552151
7611622301120
oct133044166743
934485275814
1012223311331
1152028167a0
12245168b657
1311ca4c14ca
1483d54b747
154b8181d21
hex2d890ede3

12223311331 has 8 divisors (see below), whose sum is σ = 15239453184. Its totient is φ = 9524658120.

The previous prime is 12223311329. The next prime is 12223311341. The reversal of 12223311331 is 13311332221.

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 12223311331 - 21 = 12223311329 is a prime.

It is a super-2 number, since 2×122233113312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223311301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79372075 + ... + 79372228.

It is an arithmetic number, because the mean of its divisors is an integer number (1904931648).

Almost surely, 212223311331 is an apocalyptic number.

12223311331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12223311331 is a deficient number, since it is larger than the sum of its proper divisors (3016141853).

12223311331 is a wasteful number, since it uses less digits than its factorization.

12223311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158744321.

The product of its digits is 648, while the sum is 22.

Adding to 12223311331 its reverse (13311332221), we get a palindrome (25534643552).

The spelling of 12223311331 in words is "twelve billion, two hundred twenty-three million, three hundred eleven thousand, three hundred thirty-one".

Divisors: 1 7 11 77 158744303 1111210121 1746187333 12223311331