1225303452651 has 8 divisors (see below), whose sum is σ = 1633880455744. Its totient is φ = 816797709000.

The previous prime is 1225303452623. The next prime is 1225303452689. The reversal of 1225303452651 is 1562543035221.

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

It is not a de Polignac number, because 1225303452651 - 2¹⁵ = 1225303419883 is a prime.

It is a super-2 number, since 2×1225303452651² (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 (1225303452601) 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, 17774725 + ... + 17843526.

It is an arithmetic number, because the mean of its divisors is an integer number (204235056968).

Almost surely, 2^{1225303452651} is an apocalyptic number.

1225303452651 is a deficient number, since it is larger than the sum of its proper divisors (408577003093).

1225303452651 is a wasteful number, since it uses less digits than its factorization.

1225303452651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35629721.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 1225303452651 its reverse (1562543035221), we get a palindrome (2787846487872).

The spelling of 1225303452651 in words is "one trillion, two hundred twenty-five billion, three hundred three million, four hundred fifty-two thousand, six hundred fifty-one".