1225462645221 has 64 divisors (see below), whose sum is σ = 1798653331200. Its totient is φ = 739366963200.

The previous prime is 1225462645213. The next prime is 1225462645283.

It is a happy number.

1225462645221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1225462645221 - 2³ = 1225462645213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225462645291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73192911 + ... + 73209651.

It is an arithmetic number, because the mean of its divisors is an integer number (28103958300).

Almost surely, 2^{1225462645221} is an apocalyptic number.

It is an amenable number.

1225462645221 is a deficient number, since it is larger than the sum of its proper divisors (573190685979).

1225462645221 is a wasteful number, since it uses less digits than its factorization.

1225462645221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430.

The product of its digits is 460800, while the sum is 42.

The spelling of 1225462645221 in words is "one trillion, two hundred twenty-five billion, four hundred sixty-two million, six hundred forty-five thousand, two hundred twenty-one".