12402213 has 16 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 7925120.

The previous prime is 12402191. The next prime is 12402217. The reversal of 12402213 is 31220421.

It is a cyclic number.

It is not a de Polignac number, because 12402213 - 2⁶ = 12402149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12402192 and 12402201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402217) 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, 6403 + ... + 8111.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^12402213 is an apocalyptic number.

It is an amenable number.

12402213 is a deficient number, since it is larger than the sum of its proper divisors (4834587).

12402213 is a wasteful number, since it uses less digits than its factorization.

12402213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12402213 is about 3521.6775831981. The cubic root of 12402213 is about 231.4726739496.

Adding to 12402213 its reverse (31220421), we get a palindrome (43622634).

The spelling of 12402213 in words is "twelve million, four hundred two thousand, two hundred thirteen".