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12301222020 = 223523371032339
BaseRepresentation
bin10110111010011010…
…11100000010000100
31011202021220211021120
423131031130002010
5200143103101040
65352345513540
7613556443023
oct133515340204
934667824246
1012301222020
1152427a019a
1224737a28b0
13121069c8c9
14849a2c8ba
154bee217d0
hex2dd35c084

12301222020 has 192 divisors, whose sum is σ = 37286645760. Its totient is φ = 3021967872.

The previous prime is 12301222007. The next prime is 12301222027. The reversal of 12301222020 is 2022210321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12301222027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5258011 + ... + 5260349.

It is an arithmetic number, because the mean of its divisors is an integer number (194201280).

Almost surely, 212301222020 is an apocalyptic number.

12301222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12301222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18643322880).

12301222020 is an abundant number, since it is smaller than the sum of its proper divisors (24985423740).

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

12301222020 is a wasteful number, since it uses less digits than its factorization.

12301222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12301222020 its reverse (2022210321), we get a palindrome (14323432341).

The spelling of 12301222020 in words is "twelve billion, three hundred one million, two hundred twenty-two thousand, twenty".