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122442441213 = 340814147071
BaseRepresentation
bin111001000001000100…
…0110110000111111101
3102201001020001110222010
41302002020312013331
54001230231104323
6132125502241433
711563144402161
oct1620210660775
9381036043863
10122442441213
1147a22625384
121b891886279
13b714212a61
145cd7892ca1
1532b9611c93
hex1c822361fd

122442441213 has 4 divisors (see below), whose sum is σ = 163256588288. Its totient is φ = 81628294140.

The previous prime is 122442441193. The next prime is 122442441229. The reversal of 122442441213 is 312144244221.

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.

It is not a de Polignac number, because 122442441213 - 210 = 122442440189 is a prime.

It is a super-2 number, since 2×1224424412132 (a number of 23 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 (122442441283) 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, 20407073533 + ... + 20407073538.

It is an arithmetic number, because the mean of its divisors is an integer number (40814147072).

Almost surely, 2122442441213 is an apocalyptic number.

It is an amenable number.

122442441213 is a deficient number, since it is larger than the sum of its proper divisors (40814147075).

122442441213 is an equidigital number, since it uses as much as digits as its factorization.

122442441213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40814147074.

The product of its digits is 12288, while the sum is 30.

Adding to 122442441213 its reverse (312144244221), we get a palindrome (434586685434).

The spelling of 122442441213 in words is "one hundred twenty-two billion, four hundred forty-two million, four hundred forty-one thousand, two hundred thirteen".

Divisors: 1 3 40814147071 122442441213