1262101225 has 24 divisors (see below), whose sum is σ = 1951178688. Its totient is φ = 786763200.

The previous prime is 1262101223. The next prime is 1262101231. The reversal of 1262101225 is 5221012621.

It is not a de Polignac number, because 1262101225 - 2¹ = 1262101223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1262101196 and 1262101205.

It is not an unprimeable number, because it can be changed into a prime (1262101223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325894 + ... + 329743.

It is an arithmetic number, because the mean of its divisors is an integer number (81299112).

Almost surely, 2^1262101225 is an apocalyptic number.

It is an amenable number.

1262101225 is a deficient number, since it is larger than the sum of its proper divisors (689077463).

1262101225 is a wasteful number, since it uses less digits than its factorization.

1262101225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655665 (or 655660 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1262101225 is about 35526.0640234744. The cubic root of 1262101225 is about 1080.6823605643.

Adding to 1262101225 its reverse (5221012621), we get a palindrome (6483113846).

The spelling of 1262101225 in words is "one billion, two hundred sixty-two million, one hundred one thousand, two hundred twenty-five".