1345122212 has 48 divisors (see below), whose sum is σ = 2852156160. Its totient is φ = 541873152.

The previous prime is 1345122199. The next prime is 1345122221. The reversal of 1345122212 is 2122215431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536153 + ... + 538655.

It is an arithmetic number, because the mean of its divisors is an integer number (59419920).

Almost surely, 2^1345122212 is an apocalyptic number.

It is an amenable number.

1345122212 is an abundant number, since it is smaller than the sum of its proper divisors (1507033948).

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

1345122212 is a wasteful number, since it uses less digits than its factorization.

1345122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 3658 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1345122212 is about 36675.9077869928. The cubic root of 1345122212 is about 1103.8767376647.

Adding to 1345122212 its reverse (2122215431), we get a palindrome (3467337643).

The spelling of 1345122212 in words is "one billion, three hundred forty-five million, one hundred twenty-two thousand, two hundred twelve".