12921022 has 8 divisors (see below), whose sum is σ = 19431072. Its totient is φ = 6444000.

The previous prime is 12921011. The next prime is 12921049. The reversal of 12921022 is 22012921.

12921022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7254 + ... + 8857.

It is an arithmetic number, because the mean of its divisors is an integer number (2428884).

Almost surely, 2^12921022 is an apocalyptic number.

12921022 is a deficient number, since it is larger than the sum of its proper divisors (6510050).

12921022 is a wasteful number, since it uses less digits than its factorization.

12921022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12921022 is about 3594.5823123139. The cubic root of 12921022 is about 234.6563378754.

Adding to 12921022 its reverse (22012921), we get a palindrome (34933943).

The spelling of 12921022 in words is "twelve million, nine hundred twenty-one thousand, twenty-two".