12210077 has 4 divisors (see below), whose sum is σ = 13320096. Its totient is φ = 11100060.

The previous prime is 12210067. The next prime is 12210101. The reversal of 12210077 is 77001221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210077 - 2⁴ = 12210061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554993 + ... + 555014.

It is an arithmetic number, because the mean of its divisors is an integer number (3330024).

Almost surely, 2^12210077 is an apocalyptic number.

It is an amenable number.

12210077 is a deficient number, since it is larger than the sum of its proper divisors (1110019).

12210077 is a wasteful number, since it uses less digits than its factorization.

12210077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110018.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12210077 is about 3494.2920599171. The cubic root of 12210077 is about 230.2711169630.

Adding to 12210077 its reverse (77001221), we get a palindrome (89211298).

The spelling of 12210077 in words is "twelve million, two hundred ten thousand, seventy-seven".