12210136 has 8 divisors (see below), whose sum is σ = 22894020. Its totient is φ = 6105064.

The previous prime is 12210119. The next prime is 12210137. The reversal of 12210136 is 63101221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12210136² = 298174842276992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763126 + ... + 763141.

Almost surely, 2^12210136 is an apocalyptic number.

It is an amenable number.

12210136 is a deficient number, since it is larger than the sum of its proper divisors (10683884).

12210136 is a wasteful number, since it uses less digits than its factorization.

12210136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526273 (or 1526269 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12210136 is about 3494.3005022465. The cubic root of 12210136 is about 230.2714878581.

Adding to 12210136 its reverse (63101221), we get a palindrome (75311357).

The spelling of 12210136 in words is "twelve million, two hundred ten thousand, one hundred thirty-six".