1245102212 has 6 divisors (see below), whose sum is σ = 2178928878. Its totient is φ = 622551104.

The previous prime is 1245102203. The next prime is 1245102233. The reversal of 1245102212 is 2122015421.

It can be written as a sum of positive squares in only one way, i.e., 1243549696 + 1552516 = 35264^2 + 1246^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155637773 + ... + 155637780.

It is an arithmetic number, because the mean of its divisors is an integer number (363154813).

Almost surely, 2^1245102212 is an apocalyptic number.

It is an amenable number.

1245102212 is a deficient number, since it is larger than the sum of its proper divisors (933826666).

1245102212 is a wasteful number, since it uses less digits than its factorization.

1245102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311275557 (or 311275555 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1245102212 is about 35286.0058946886. The cubic root of 1245102212 is about 1075.8085748658.

Adding to 1245102212 its reverse (2122015421), we get a palindrome (3367117633).

The spelling of 1245102212 in words is "one billion, two hundred forty-five million, one hundred two thousand, two hundred twelve".