11771212 has 12 divisors (see below), whose sum is σ = 20623960. Its totient is φ = 5878656.

The previous prime is 11771183. The next prime is 11771213. The reversal of 11771212 is 21217711.

It is a super-2 number, since 2×11771212² = 277122863897888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11771213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4828 + ... + 6844.

Almost surely, 2^11771212 is an apocalyptic number.

It is an amenable number.

11771212 is a deficient number, since it is larger than the sum of its proper divisors (8852748).

11771212 is a wasteful number, since it uses less digits than its factorization.

11771212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3478 counting only the distinct ones).

The product of its digits is 196, while the sum is 22.

The square root of 11771212 is about 3430.9199932380. The cubic root of 11771212 is about 227.4785198896.

Adding to 11771212 its reverse (21217711), we get a palindrome (32988923).

The spelling of 11771212 in words is "eleven million, seven hundred seventy-one thousand, two hundred twelve".