12200156 has 12 divisors (see below), whose sum is σ = 21487368. Its totient is φ = 6060912.

The previous prime is 12200137. The next prime is 12200171. The reversal of 12200156 is 65100221.

12200156 is nontrivially palindromic in base 5.

12200156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9086 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (1790614).

Almost surely, 2^12200156 is an apocalyptic number.

It is an amenable number.

12200156 is a deficient number, since it is larger than the sum of its proper divisors (9287212).

12200156 is a wasteful number, since it uses less digits than its factorization.

12200156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19588 (or 19586 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12200156 is about 3492.8721705782. The cubic root of 12200156 is about 230.2087330055.

Adding to 12200156 its reverse (65100221), we get a palindrome (77300377).

It can be divided in two parts, 122001 and 56, that multiplied together give a triangular number (6832056 = T₃₆₉₆).

The spelling of 12200156 in words is "twelve million, two hundred thousand, one hundred fifty-six".