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12242213101 = 23895124409
BaseRepresentation
bin10110110011011000…
…10101100011101101
31011121011212212021001
423121230111203231
5200033001304401
65342441040301
7612242044246
oct133154254355
934534785231
1012242213101
115212456998
122457a86091
1312013abaa1
14841c6bccd
154b9b67601
hex2d9b158ed

12242213101 has 4 divisors (see below), whose sum is σ = 12247339900. Its totient is φ = 12237086304.

The previous prime is 12242213099. The next prime is 12242213107. The reversal of 12242213101 is 10131224221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7943443876 + 4298769225 = 89126^2 + 65565^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242213101 - 21 = 12242213099 is a prime.

It is a super-2 number, since 2×122422131012 (a number of 21 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 (12242213107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559816 + ... + 2564593.

It is an arithmetic number, because the mean of its divisors is an integer number (3061834975).

Almost surely, 212242213101 is an apocalyptic number.

It is an amenable number.

12242213101 is a deficient number, since it is larger than the sum of its proper divisors (5126799).

12242213101 is an equidigital number, since it uses as much as digits as its factorization.

12242213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126798.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12242213101 its reverse (10131224221), we get a palindrome (22373437322).

The spelling of 12242213101 in words is "twelve billion, two hundred forty-two million, two hundred thirteen thousand, one hundred one".

Divisors: 1 2389 5124409 12242213101