1111229272 has 16 divisors (see below), whose sum is σ = 2127886560. Its totient is φ = 543792864.

The previous prime is 1111229261. The next prime is 1111229297. The reversal of 1111229272 is 2729221111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111229272.

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, 1477323 + ... + 1478074.

It is an arithmetic number, because the mean of its divisors is an integer number (132992910).

Almost surely, 2^1111229272 is an apocalyptic number.

It is an amenable number.

1111229272 is a deficient number, since it is larger than the sum of its proper divisors (1016657288).

1111229272 is a wasteful number, since it uses less digits than its factorization.

1111229272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955450 (or 2955446 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 1111229272 is about 33335.1056995474. The cubic root of 1111229272 is about 1035.7808826854.

The spelling of 1111229272 in words is "one billion, one hundred eleven million, two hundred twenty-nine thousand, two hundred seventy-two".