1213522322025 has 48 divisors (see below), whose sum is σ = 2171887684736. Its totient is φ = 594330808320.

The previous prime is 1213522322003. The next prime is 1213522322041. The reversal of 1213522322025 is 5202232253121.

It is a happy number.

It is not a de Polignac number, because 1213522322025 - 2¹⁶ = 1213522256489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213522321983 and 1213522322001.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3036277 + ... + 3412626.

Almost surely, 2^{1213522322025} is an apocalyptic number.

1213522322025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1213522322025 is a deficient number, since it is larger than the sum of its proper divisors (958365362711).

1213522322025 is a wasteful number, since it uses less digits than its factorization.

1213522322025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449122 (or 6449117 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1213522322025 its reverse (5202232253121), we get a palindrome (6415754575146).

The spelling of 1213522322025 in words is "one trillion, two hundred thirteen billion, five hundred twenty-two million, three hundred twenty-two thousand, twenty-five".