1145216212 has 24 divisors (see below), whose sum is σ = 2312675456. Its totient is φ = 486040608.

The previous prime is 1145216197. The next prime is 1145216213. The reversal of 1145216212 is 2126125411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145216213) 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, 195663 + ... + 201430.

Almost surely, 2^1145216212 is an apocalyptic number.

It is an amenable number.

1145216212 is an abundant number, since it is smaller than the sum of its proper divisors (1167459244).

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

1145216212 is a wasteful number, since it uses less digits than its factorization.

1145216212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397207 (or 397205 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 1145216212 is about 33841.0433054302. The cubic root of 1145216212 is about 1046.2348023374.

The spelling of 1145216212 in words is "one billion, one hundred forty-five million, two hundred sixteen thousand, two hundred twelve".