1225564622501 has 8 divisors (see below), whose sum is σ = 1255480296000. Its totient is φ = 1195650084960.

The previous prime is 1225564622411. The next prime is 1225564622509. The reversal of 1225564622501 is 1052264655221.

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 1225564622501 - 2¹⁸ = 1225564360357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225564622509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152040 + ... + 2661278.

It is an arithmetic number, because the mean of its divisors is an integer number (156935037000).

Almost surely, 2^{1225564622501} is an apocalyptic number.

It is an amenable number.

1225564622501 is a deficient number, since it is larger than the sum of its proper divisors (29915673499).

1225564622501 is an equidigital number, since it uses as much as digits as its factorization.

1225564622501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567979.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 1225564622501 in words is "one trillion, two hundred twenty-five billion, five hundred sixty-four million, six hundred twenty-two thousand, five hundred one".