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34121322221 = 74874474603
BaseRepresentation
bin11111110001110010…
…100000111011101101
310021001222021202121212
4133301302200323231
51024340024302341
623401454204205
72315362311350
oct376162407355
9107058252555
1034121322221
111351a662458
1267431b3665
1332aa1844bc
141919940297
15d4a8665eb
hex7f1ca0eed

34121322221 has 4 divisors (see below), whose sum is σ = 38995796832. Its totient is φ = 29246847612.

The previous prime is 34121322199. The next prime is 34121322223. The reversal of 34121322221 is 12222312143.

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: 12222312143 = 28607427249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34121322221 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 (34121322223) 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, 2437237295 + ... + 2437237308.

It is an arithmetic number, because the mean of its divisors is an integer number (9748949208).

Almost surely, 234121322221 is an apocalyptic number.

It is an amenable number.

34121322221 is a deficient number, since it is larger than the sum of its proper divisors (4874474611).

34121322221 is an equidigital number, since it uses as much as digits as its factorization.

34121322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874474610.

The product of its digits is 1152, while the sum is 23.

Adding to 34121322221 its reverse (12222312143), we get a palindrome (46343634364).

The spelling of 34121322221 in words is "thirty-four billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 7 4874474603 34121322221