1222734125 has 8 divisors (see below), whose sum is σ = 1525972344. Its totient is φ = 978187200.

The previous prime is 1222734109. The next prime is 1222734133. The reversal of 1222734125 is 5214372221.

It can be written as a sum of positive squares in 4 ways, for example, as 6538249 + 1216195876 = 2557^2 + 34874^2 .

It is not a de Polignac number, because 1222734125 - 2⁴ = 1222734109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 4890812 + ... + 4891061.

It is an arithmetic number, because the mean of its divisors is an integer number (190746543).

Almost surely, 2^1222734125 is an apocalyptic number.

It is an amenable number.

1222734125 is a deficient number, since it is larger than the sum of its proper divisors (303238219).

1222734125 is an frugal number, since it uses more digits than its factorization.

1222734125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9781888 (or 9781878 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 1222734125 is about 34967.6153748007. The cubic root of 1222734125 is about 1069.3273569581.

The spelling of 1222734125 in words is "one billion, two hundred twenty-two million, seven hundred thirty-four thousand, one hundred twenty-five".