1121222152 has 8 divisors (see below), whose sum is σ = 2102291550. Its totient is φ = 560611072.

The previous prime is 1121222117. The next prime is 1121222171. The reversal of 1121222152 is 2512221211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 721781956 + 399440196 = 26866^2 + 19986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1121222152² = 2514278228271022208, which contains 22 as substring.

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, 70076377 + ... + 70076392.

Almost surely, 2^1121222152 is an apocalyptic number.

It is an amenable number.

1121222152 is a deficient number, since it is larger than the sum of its proper divisors (981069398).

1121222152 is a wasteful number, since it uses less digits than its factorization.

1121222152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140152775 (or 140152771 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 1121222152 is about 33484.6554708272. The cubic root of 1121222152 is about 1038.8764221665.

Adding to 1121222152 its reverse (2512221211), we get a palindrome (3633443363).

The spelling of 1121222152 in words is "one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred fifty-two".