12602122440 has 192 divisors, whose sum is σ = 41145269760. Its totient is φ = 3085393920.

The previous prime is 12602122397. The next prime is 12602122459. The reversal of 12602122440 is 4422120621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12602122440.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1417449 + ... + 1426311.

It is an arithmetic number, because the mean of its divisors is an integer number (214298280).

Almost surely, 2^12602122440 is an apocalyptic number.

12602122440 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 12602122440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20572634880).

12602122440 is an abundant number, since it is smaller than the sum of its proper divisors (28543147320).

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

12602122440 is a wasteful number, since it uses less digits than its factorization.

12602122440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952 (or 8931 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The spelling of 12602122440 in words is "twelve billion, six hundred two million, one hundred twenty-two thousand, four hundred forty".