12581022270 has 32 divisors (see below), whose sum is σ = 30213475488. Its totient is φ = 3352825728.

The previous prime is 12581022269. The next prime is 12581022271. The reversal of 12581022270 is 7222018521.

It is an interprime number because it is at equal distance from previous prime (12581022269) and next prime (12581022271).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12581022271) 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, 83389 + ... + 179208.

It is an arithmetic number, because the mean of its divisors is an integer number (944171109).

Almost surely, 2^12581022270 is an apocalyptic number.

12581022270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12581022270 is an abundant number, since it is smaller than the sum of its proper divisors (17632453218).

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

12581022270 is a wasteful number, since it uses less digits than its factorization.

12581022270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264204.

The product of its (nonzero) digits is 4480, while the sum is 30.

The spelling of 12581022270 in words is "twelve billion, five hundred eighty-one million, twenty-two thousand, two hundred seventy".