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12221212333 = 116591685917
BaseRepresentation
bin10110110000111000…
…01110011010101101
31011112201100220121211
423120130032122231
5200012112243313
65340410554421
7611565406441
oct133034163255
934481326554
1012221212333
115201612790
122450a38a11
1311c9c37cb5
1483d162821
154b7db9e3d
hex2d870e6ad

12221212333 has 8 divisors (see below), whose sum is σ = 13352470560. Its totient is φ = 11093327280.

The previous prime is 12221212327. The next prime is 12221212343. The reversal of 12221212333 is 33321212221.

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 12221212333 - 25 = 12221212301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221212303) 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, 835710 + ... + 850207.

It is an arithmetic number, because the mean of its divisors is an integer number (1669058820).

Almost surely, 212221212333 is an apocalyptic number.

It is an amenable number.

12221212333 is a deficient number, since it is larger than the sum of its proper divisors (1131258227).

12221212333 is a wasteful number, since it uses less digits than its factorization.

12221212333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686587.

The product of its digits is 864, while the sum is 22.

Adding to 12221212333 its reverse (33321212221), we get a palindrome (45542424554).

The spelling of 12221212333 in words is "twelve billion, two hundred twenty-one million, two hundred twelve thousand, three hundred thirty-three".

Divisors: 1 11 659 7249 1685917 18545087 1111019303 12221212333