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12212010222 = 238958738959
BaseRepresentation
bin10110101111110010…
…00111110011101110
31011112002001101200220
423113321013303232
5200002233311342
65335441432210
7611424242226
oct132771076356
934462041626
1012212010222
1151a73a8035
12244993b666
1311c8065669
1483bc49086
154b719d5ec
hex2d7e47cee

12212010222 has 32 divisors (see below), whose sum is σ = 24741158400. Its totient is φ = 4017972288.

The previous prime is 12212010193. The next prime is 12212010227. The reversal of 12212010222 is 22201021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212010227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293979 + ... + 332937.

It is an arithmetic number, because the mean of its divisors is an integer number (773161200).

Almost surely, 212212010222 is an apocalyptic number.

12212010222 is an abundant number, since it is smaller than the sum of its proper divisors (12529148178).

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

12212010222 is a wasteful number, since it uses less digits than its factorization.

12212010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39640.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212010222 its reverse (22201021221), we get a palindrome (34413031443).

The spelling of 12212010222 in words is "twelve billion, two hundred twelve million, ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 89 178 267 534 587 1174 1761 3522 38959 52243 77918 104486 116877 156729 233754 313458 3467351 6934702 10402053 20804106 22868933 45737866 68606799 137213598 2035335037 4070670074 6106005111 12212010222