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12022222230 = 233544526749
BaseRepresentation
bin10110011001001010…
…01000110110010110
31011000211221011112000
423030211020312112
5144110142102410
65304541540130
7603631126404
oct131445106626
934024834460
1012022222230
11510a25a557
1223b6274646
131197945585
14820964474
154a56aedc0
hex2cc948d96

12022222230 has 32 divisors (see below), whose sum is σ = 32059260000. Its totient is φ = 3205925856.

The previous prime is 12022222217. The next prime is 12022222243. The reversal of 12022222230 is 3222222021.

It is an interprime number because it is at equal distance from previous prime (12022222217) and next prime (12022222243).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22263105 + ... + 22263644.

It is an arithmetic number, because the mean of its divisors is an integer number (1001851875).

Almost surely, 212022222230 is an apocalyptic number.

12022222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12022222230 is an abundant number, since it is smaller than the sum of its proper divisors (20037037770).

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

12022222230 is a wasteful number, since it uses less digits than its factorization.

12022222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44526765 (or 44526759 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12022222230 its reverse (3222222021), we get a palindrome (15244444251).

The spelling of 12022222230 in words is "twelve billion, twenty-two million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 44526749 89053498 133580247 222633745 267160494 400740741 445267490 667901235 801481482 1202222223 1335802470 2003703705 2404444446 4007407410 6011111115 12022222230