12972122 has 8 divisors (see below), whose sum is σ = 20602836. Its totient is φ = 6104512.

The previous prime is 12972107. The next prime is 12972131. The reversal of 12972122 is 22127921.

12972122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12952801 + 19321 = 3599^2 + 139^2 .

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 = 12972091 and 12972100.

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, 190733 + ... + 190800.

Almost surely, 2^12972122 is an apocalyptic number.

12972122 is a deficient number, since it is larger than the sum of its proper divisors (7630714).

12972122 is a wasteful number, since it uses less digits than its factorization.

12972122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381552.

The product of its digits is 1008, while the sum is 26.

The square root of 12972122 is about 3601.6832176081. The cubic root of 12972122 is about 234.9652702562.

The spelling of 12972122 in words is "twelve million, nine hundred seventy-two thousand, one hundred twenty-two".