1225134212 has 48 divisors (see below), whose sum is σ = 2295552000. Its totient is φ = 570439584.

The previous prime is 1225134179. The next prime is 1225134227. The reversal of 1225134212 is 2124315221.

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, 2515433 + ... + 2515919.

It is an arithmetic number, because the mean of its divisors is an integer number (47824000).

Almost surely, 2^1225134212 is an apocalyptic number.

It is an amenable number.

1225134212 is a deficient number, since it is larger than the sum of its proper divisors (1070417788).

1225134212 is a wasteful number, since it uses less digits than its factorization.

1225134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

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

The square root of 1225134212 is about 35001.9172617730. The cubic root of 1225134212 is about 1070.0265553720.

Adding to 1225134212 its reverse (2124315221), we get a palindrome (3349449433).

The spelling of 1225134212 in words is "one billion, two hundred twenty-five million, one hundred thirty-four thousand, two hundred twelve".