12122590 has 8 divisors (see below), whose sum is σ = 21820680. Its totient is φ = 4849032.

The previous prime is 12122563. The next prime is 12122597. The reversal of 12122590 is 9522121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606120 + ... + 606139.

It is an arithmetic number, because the mean of its divisors is an integer number (2727585).

Almost surely, 2^12122590 is an apocalyptic number.

12122590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122590 is a deficient number, since it is larger than the sum of its proper divisors (9698090).

12122590 is a wasteful number, since it uses less digits than its factorization.

12122590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212266.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12122590 is about 3481.7509962661. The cubic root of 12122590 is about 229.7198226682.

The spelling of 12122590 in words is "twelve million, one hundred twenty-two thousand, five hundred ninety".