1227121132 has 24 divisors (see below), whose sum is σ = 2335241664. Its totient is φ = 561860352.

The previous prime is 1227121087. The next prime is 1227121151. The reversal of 1227121132 is 2311217221.

It is a super-2 number, since 2×1227121132² = 3011652545201922848, 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 in 7 ways as a sum of consecutive naturals, for example, 241348 + ... + 246379.

It is an arithmetic number, because the mean of its divisors is an integer number (97301736).

Almost surely, 2^1227121132 is an apocalyptic number.

It is an amenable number.

1227121132 is a deficient number, since it is larger than the sum of its proper divisors (1108120532).

1227121132 is a wasteful number, since it uses less digits than its factorization.

1227121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487785 (or 487783 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 1227121132 is about 35030.2887798545. The cubic root of 1227121132 is about 1070.6046985208.

Adding to 1227121132 its reverse (2311217221), we get a palindrome (3538338353).

The spelling of 1227121132 in words is "one billion, two hundred twenty-seven million, one hundred twenty-one thousand, one hundred thirty-two".