1225530512401 has 8 divisors (see below), whose sum is σ = 1323965508264. Its totient is φ = 1127690290560.

The previous prime is 1225530512399. The next prime is 1225530512407. The reversal of 1225530512401 is 1042150355221.

It can be written as a sum of positive squares in 4 ways, for example, as 90165676176 + 1135364836225 = 300276^2 + 1065535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225530512401 - 2¹ = 1225530512399 is a prime.

It is a super-2 number, since 2×1225530512401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225530512407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148689220 + ... + 148697461.

It is an arithmetic number, because the mean of its divisors is an integer number (165495688533).

Almost surely, 2^{1225530512401} is an apocalyptic number.

It is an amenable number.

1225530512401 is a deficient number, since it is larger than the sum of its proper divisors (98434995863).

1225530512401 is a wasteful number, since it uses less digits than its factorization.

1225530512401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297387011.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1225530512401 its reverse (1042150355221), we get a palindrome (2267680867622).

The spelling of 1225530512401 in words is "one trillion, two hundred twenty-five billion, five hundred thirty million, five hundred twelve thousand, four hundred one".