1122202272 has 48 divisors (see below), whose sum is σ = 2949186240. Its totient is φ = 373635072.

The previous prime is 1122202271. The next prime is 1122202303. The reversal of 1122202272 is 2722022211.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1122202271) 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 7 ways as a sum of consecutive naturals, for example, 82893 + ... + 95475.

It is an arithmetic number, because the mean of its divisors is an integer number (61441380).

Almost surely, 2^1122202272 is an apocalyptic number.

1122202272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122202272 is an abundant number, since it is smaller than the sum of its proper divisors (1826983968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122202272 is a wasteful number, since it uses less digits than its factorization.

1122202272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525 (or 13517 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1122202272 is about 33499.2876342169. The cubic root of 1122202272 is about 1039.1790464075.

Adding to 1122202272 its reverse (2722022211), we get a palindrome (3844224483).

The spelling of 1122202272 in words is "one billion, one hundred twenty-two million, two hundred two thousand, two hundred seventy-two".