12227748390 has 128 divisors (see below), whose sum is σ = 38308032000. Its totient is φ = 2736270720.

The previous prime is 12227748383. The next prime is 12227748397. The reversal of 12227748390 is 9384772221.

12227748390 is a `hidden beast` number, since 12 + 2 + 2 + 77 + 483 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (12227748383) and next prime (12227748397).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227748397) 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, 119740 + ... + 196959.

It is an arithmetic number, because the mean of its divisors is an integer number (299281500).

Almost surely, 2^12227748390 is an apocalyptic number.

12227748390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12227748390 is an abundant number, since it is smaller than the sum of its proper divisors (26080283610).

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

12227748390 is a wasteful number, since it uses less digits than its factorization.

12227748390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316739 (or 316733 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 12227748390 in words is "twelve billion, two hundred twenty-seven million, seven hundred forty-eight thousand, three hundred ninety".