2211267172 has 6 divisors (see below), whose sum is σ = 3869717558. Its totient is φ = 1105633584.

The previous prime is 2211267167. The next prime is 2211267181. The reversal of 2211267172 is 2717621122.

It can be written as a sum of positive squares in only one way, i.e., 2188742656 + 22524516 = 46784^2 + 4746^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 276408393 + ... + 276408400.

Almost surely, 2^2211267172 is an apocalyptic number.

It is an amenable number.

2211267172 is a deficient number, since it is larger than the sum of its proper divisors (1658450386).

2211267172 is a wasteful number, since it uses less digits than its factorization.

2211267172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552816797 (or 552816795 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 2211267172 is about 47024.1126657378. The cubic root of 2211267172 is about 1302.8079683597.

Adding to 2211267172 its reverse (2717621122), we get a palindrome (4928888294).

The spelling of 2211267172 in words is "two billion, two hundred eleven million, two hundred sixty-seven thousand, one hundred seventy-two".