12261370 has 16 divisors (see below), whose sum is σ = 24077088. Its totient is φ = 4458640.

The previous prime is 12261331. The next prime is 12261371. The reversal of 12261370 is 7316221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12261371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55624 + ... + 55843.

It is an arithmetic number, because the mean of its divisors is an integer number (1504818).

Almost surely, 2^12261370 is an apocalyptic number.

12261370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261370 is a deficient number, since it is larger than the sum of its proper divisors (11815718).

12261370 is a wasteful number, since it uses less digits than its factorization.

12261370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111485.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12261370 is about 3501.6239089885. The cubic root of 12261370 is about 230.5931131753.

Adding to 12261370 its reverse (7316221), we get a palindrome (19577591).

The spelling of 12261370 in words is "twelve million, two hundred sixty-one thousand, three hundred seventy".