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BaseRepresentation
bin11111110010011111…
…110111100001010101
310021002210122210021012
4133302133313201111
51024401100224341
623403001102005
72315565336224
oct376237674125
9107083583235
1034133211221
111352634287a
126747187905
1332ac787b05
14191b356cbb
15d4b9140eb
hex7f27f7855

34133211221 has 4 divisors (see below), whose sum is σ = 34163990700. Its totient is φ = 34102431744.

The previous prime is 34133211197. The next prime is 34133211263. The reversal of 34133211221 is 12211233143.

Adding to 34133211221 its reverse (12211233143), we get a palindrome (46344444364).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12211233143 = 35934014577.

It can be written as a sum of positive squares in 2 ways, for example, as 15003555121 + 19129656100 = 122489^2 + 138310^2 .

It is a cyclic number.

It is not a de Polignac number, because 34133211221 - 234 = 16953342037 is a prime.

It is a super-2 number, since 2×341332112212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34133217221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15388076 + ... + 15390293.

It is an arithmetic number, because the mean of its divisors is an integer number (8540997675).

Almost surely, 234133211221 is an apocalyptic number.

It is an amenable number.

34133211221 is a deficient number, since it is larger than the sum of its proper divisors (30779479).

34133211221 is a wasteful number, since it uses less digits than its factorization.

34133211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30779478.

The product of its digits is 864, while the sum is 23.

The spelling of 34133211221 in words is "thirty-four billion, one hundred thirty-three million, two hundred eleven thousand, two hundred twenty-one".

Divisors: 1 1109 30778369 34133211221