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12212032133 = 71744576019
BaseRepresentation
bin10110101111110010…
…01101001010000101
31011112002002111202102
423113321031022011
5200002240012013
65335442121445
7611424363140
oct132771151205
934462074672
1012212032133
1151a7412544
122449950285
1311c8072622
1483bc53057
154b71a4d58
hex2d7e4d285

12212032133 has 4 divisors (see below), whose sum is σ = 13956608160. Its totient is φ = 10467456108.

The previous prime is 12212032123. The next prime is 12212032159. The reversal of 12212032133 is 33123021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33123021221 = 171948413013.

It is a cyclic number.

It is not a de Polignac number, because 12212032133 - 28 = 12212031877 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 (12212032123) 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, 872288003 + ... + 872288016.

It is an arithmetic number, because the mean of its divisors is an integer number (3489152040).

Almost surely, 212212032133 is an apocalyptic number.

It is an amenable number.

12212032133 is a deficient number, since it is larger than the sum of its proper divisors (1744576027).

12212032133 is an equidigital number, since it uses as much as digits as its factorization.

12212032133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744576026.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12212032133 its reverse (33123021221), we get a palindrome (45335053354).

The spelling of 12212032133 in words is "twelve billion, two hundred twelve million, thirty-two thousand, one hundred thirty-three".

Divisors: 1 7 1744576019 12212032133