12990122 has 8 divisors (see below), whose sum is σ = 19605216. Its totient is φ = 6455052.

The previous prime is 12990119. The next prime is 12990127. The reversal of 12990122 is 22109921.

It is a happy number.

12990122 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 junction number, because it is equal to n+sod(n) for n = 12990091 and 12990100.

It is not an unprimeable number, because it can be changed into a prime (12990127) 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, 19598 + ... + 20249.

It is an arithmetic number, because the mean of its divisors is an integer number (2450652).

Almost surely, 2^12990122 is an apocalyptic number.

12990122 is a deficient number, since it is larger than the sum of its proper divisors (6615094).

12990122 is a wasteful number, since it uses less digits than its factorization.

12990122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40012.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12990122 is about 3604.1811830151. The cubic root of 12990122 is about 235.0738985942.

The spelling of 12990122 in words is "twelve million, nine hundred ninety thousand, one hundred twenty-two".