11772212 has 12 divisors (see below), whose sum is σ = 20645856. Its totient is φ = 5873400.

The previous prime is 11772209. The next prime is 11772221. The reversal of 11772212 is 21227711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (1720488).

Almost surely, 2^11772212 is an apocalyptic number.

It is an amenable number.

11772212 is a deficient number, since it is larger than the sum of its proper divisors (8873644).

11772212 is a wasteful number, since it uses less digits than its factorization.

11772212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358 (or 6356 counting only the distinct ones).

The product of its digits is 392, while the sum is 23.

The square root of 11772212 is about 3431.0657236491. The cubic root of 11772212 is about 227.4849613696.

Adding to 11772212 its reverse (21227711), we get a palindrome (32999923).

The spelling of 11772212 in words is "eleven million, seven hundred seventy-two thousand, two hundred twelve".