12251722 has 16 divisors (see below), whose sum is σ = 21051072. Its totient is φ = 5238720.

The previous prime is 12251719. The next prime is 12251731. The reversal of 12251722 is 22715221.

It is a junction number, because it is equal to n+sod(n) for n = 12251693 and 12251702.

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 7 ways as a sum of consecutive naturals, for example, 8322 + ... + 9682.

It is an arithmetic number, because the mean of its divisors is an integer number (1315692).

Almost surely, 2^12251722 is an apocalyptic number.

12251722 is a deficient number, since it is larger than the sum of its proper divisors (8799350).

12251722 is a wasteful number, since it uses less digits than its factorization.

12251722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013.

The product of its digits is 560, while the sum is 22.

The square root of 12251722 is about 3500.2459913555. The cubic root of 12251722 is about 230.5326156904.

Adding to 12251722 its reverse (22715221), we get a palindrome (34966943).

The spelling of 12251722 in words is "twelve million, two hundred fifty-one thousand, seven hundred twenty-two".