1225316612 has 24 divisors (see below), whose sum is σ = 2430792000. Its totient is φ = 535765536.

The previous prime is 1225316591. The next prime is 1225316621. The reversal of 1225316612 is 2166135221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619112 + ... + 621087.

It is an arithmetic number, because the mean of its divisors is an integer number (101283000).

Almost surely, 2^1225316612 is an apocalyptic number.

It is an amenable number.

1225316612 is a deficient number, since it is larger than the sum of its proper divisors (1205475388).

1225316612 is a wasteful number, since it uses less digits than its factorization.

1225316612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240235 (or 1240233 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1225316612 is about 35004.5227363551. The cubic root of 1225316612 is about 1070.0796551758.

The spelling of 1225316612 in words is "one billion, two hundred twenty-five million, three hundred sixteen thousand, six hundred twelve".