1151251212 has 24 divisors (see below), whose sum is σ = 2748725056. Its totient is φ = 374825808.

The previous prime is 1151251207. The next prime is 1151251219. The reversal of 1151251212 is 2121521511.

It is not an unprimeable number, because it can be changed into a prime (1151251219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115038 + ... + 1116069.

Almost surely, 2^1151251212 is an apocalyptic number.

1151251212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151251212 is an abundant number, since it is smaller than the sum of its proper divisors (1597473844).

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

1151251212 is a wasteful number, since it uses less digits than its factorization.

1151251212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231157 (or 2231155 counting only the distinct ones).

The product of its digits is 200, while the sum is 21.

The square root of 1151251212 is about 33930.0930149035. The cubic root of 1151251212 is about 1048.0693811747.

Adding to 1151251212 its reverse (2121521511), we get a palindrome (3272772723).

The spelling of 1151251212 in words is "one billion, one hundred fifty-one million, two hundred fifty-one thousand, two hundred twelve".