12212402 has 32 divisors (see below), whose sum is σ = 20476800. Its totient is φ = 5436288.

The previous prime is 12212399. The next prime is 12212407. The reversal of 12212402 is 20421221.

12212402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12212407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77708 + ... + 77864.

It is an arithmetic number, because the mean of its divisors is an integer number (639900).

Almost surely, 2^12212402 is an apocalyptic number.

12212402 is a deficient number, since it is larger than the sum of its proper divisors (8264398).

12212402 is a wasteful number, since it uses less digits than its factorization.

12212402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12212402 is about 3494.6247294953. The cubic root of 12212402 is about 230.2857318413.

Adding to 12212402 its reverse (20421221), we get a palindrome (32633623).

The spelling of 12212402 in words is "twelve million, two hundred twelve thousand, four hundred two".