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12201233022 = 23211311987819
BaseRepresentation
bin10110101110100000…
…00000101001111110
31011111022202212011100
423113100000221332
5144442003424042
65334414433530
7611233524636
oct132720005176
934438685140
1012201233022
1151a1306a60
1224462028a6
1311c5a61114
1483a6416c6
154b627024c
hex2d7400a7e

12201233022 has 48 divisors (see below), whose sum is σ = 29769592320. Its totient is φ = 3578072400.

The previous prime is 12201232963. The next prime is 12201233029. The reversal of 12201233022 is 22033210221.

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 = 12201232986 and 12201233004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201233029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 987772 + ... + 1000047.

It is an arithmetic number, because the mean of its divisors is an integer number (620199840).

Almost surely, 212201233022 is an apocalyptic number.

12201233022 is an abundant number, since it is smaller than the sum of its proper divisors (17568359298).

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

12201233022 is a wasteful number, since it uses less digits than its factorization.

12201233022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987869 (or 1987866 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12201233022 its reverse (22033210221), we get a palindrome (34234443243).

The spelling of 12201233022 in words is "twelve billion, two hundred one million, two hundred thirty-three thousand, twenty-two".

Divisors: 1 2 3 6 9 11 18 22 31 33 62 66 93 99 186 198 279 341 558 682 1023 2046 3069 6138 1987819 3975638 5963457 11926914 17890371 21866009 35780742 43732018 61622389 65598027 123244778 131196054 184867167 196794081 369734334 393588162 554601501 677846279 1109203002 1355692558 2033538837 4067077674 6100616511 12201233022