12902222 has 4 divisors (see below), whose sum is σ = 19353336. Its totient is φ = 6451110.

The previous prime is 12902203. The next prime is 12902237. The reversal of 12902222 is 22220921.

It is a semiprime because it is the product of two primes.

12902222 is a modest number, since divided by 2222 gives 1290 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12902194 and 12902203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225554 + ... + 3225557.

It is an arithmetic number, because the mean of its divisors is an integer number (4838334).

Almost surely, 2^12902222 is an apocalyptic number.

12902222 is a deficient number, since it is larger than the sum of its proper divisors (6451114).

12902222 is an equidigital number, since it uses as much as digits as its factorization.

12902222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451113.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12902222 is about 3591.9663138732. The cubic root of 12902222 is about 234.5424748371.

The spelling of 12902222 in words is "twelve million, nine hundred two thousand, two hundred twenty-two".