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12122213022 = 2324714328857
BaseRepresentation
bin10110100101000101…
…00100101010011110
31011021211002020002200
423102202210222132
5144311241304042
65322513032330
7606254052633
oct132242445236
934254066080
1012122213022
115160745077
1224238556a6
1311b2584b1a
1482dd5218a
154ae361c4c
hex2d28a4a9e

12122213022 has 24 divisors (see below), whose sum is σ = 26823622176. Its totient is φ = 3954764256.

The previous prime is 12122213003. The next prime is 12122213029. The reversal of 12122213022 is 22031222121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12122212986 and 12122213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122213029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7163583 + ... + 7165274.

It is an arithmetic number, because the mean of its divisors is an integer number (1117650924).

Almost surely, 212122213022 is an apocalyptic number.

12122213022 is an abundant number, since it is smaller than the sum of its proper divisors (14701409154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122213022 is a wasteful number, since it uses less digits than its factorization.

12122213022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14328912 (or 14328909 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12122213022 its reverse (22031222121), we get a palindrome (34153435143).

Subtracting 12122213022 from its reverse (22031222121), we obtain a palindrome (9909009099).

The spelling of 12122213022 in words is "twelve billion, one hundred twenty-two million, two hundred thirteen thousand, twenty-two".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 14328857 28657714 42986571 85973142 128959713 257919426 673456279 1346912558 2020368837 4040737674 6061106511 12122213022