1213225195 has 16 divisors (see below), whose sum is σ = 1791840960. Its totient is φ = 767931264.

The previous prime is 1213225163. The next prime is 1213225261. The reversal of 1213225195 is 5915223121.

It is a cyclic number.

It is not a de Polignac number, because 1213225195 - 2⁵ = 1213225163 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332760 + ... + 1333669.

It is an arithmetic number, because the mean of its divisors is an integer number (111990060).

Almost surely, 2^1213225195 is an apocalyptic number.

1213225195 is a deficient number, since it is larger than the sum of its proper divisors (578615765).

1213225195 is a wasteful number, since it uses less digits than its factorization.

1213225195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666454.

The product of its digits is 5400, while the sum is 31.

The square root of 1213225195 is about 34831.3823297325. The cubic root of 1213225195 is about 1066.5481667947.

The spelling of 1213225195 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, one hundred ninety-five".