12122654250 has 64 divisors (see below), whose sum is σ = 34580752128. Its totient is φ = 2770891200.

The previous prime is 12122654237. The next prime is 12122654263. The reversal of 12122654250 is 5245622121.

It is an interprime number because it is at equal distance from previous prime (12122654237) and next prime (12122654263).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1149289 + ... + 1159788.

It is an arithmetic number, because the mean of its divisors is an integer number (540324252).

Almost surely, 2^12122654250 is an apocalyptic number.

12122654250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122654250 is an abundant number, since it is smaller than the sum of its proper divisors (22458097878).

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

12122654250 is a wasteful number, since it uses less digits than its factorization.

12122654250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309104 (or 2309094 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 12122654250 in words is "twelve billion, one hundred twenty-two million, six hundred fifty-four thousand, two hundred fifty".