12213429 has 12 divisors (see below), whose sum is σ = 17300064. Its totient is φ = 7662784.

The previous prime is 12213403. The next prime is 12213469. The reversal of 12213429 is 92431221.

12213429 = T₁₃₄ + T₁₃₅ + ... + T₄₂₂.

It is not a de Polignac number, because 12213429 - 2⁹ = 12212917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213399 and 12213408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6177 + ... + 7910.

It is an arithmetic number, because the mean of its divisors is an integer number (1441672).

Almost surely, 2^12213429 is an apocalyptic number.

It is an amenable number.

12213429 is a deficient number, since it is larger than the sum of its proper divisors (5086635).

12213429 is a wasteful number, since it uses less digits than its factorization.

12213429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14124 (or 14107 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 12213429 is about 3494.7716663611. The cubic root of 12213429 is about 230.2921869410.

The spelling of 12213429 in words is "twelve million, two hundred thirteen thousand, four hundred twenty-nine".