1225075020251 has 4 divisors (see below), whose sum is σ = 1225078247400. Its totient is φ = 1225071793104.

The previous prime is 1225075020229. The next prime is 1225075020259. The reversal of 1225075020251 is 1520205705221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1225075020251 - 2¹⁸ = 1225074758107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225075020259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954386 + ... + 1833303.

It is an arithmetic number, because the mean of its divisors is an integer number (306269561850).

Almost surely, 2^{1225075020251} is an apocalyptic number.

1225075020251 is a deficient number, since it is larger than the sum of its proper divisors (3227149).

1225075020251 is an equidigital number, since it uses as much as digits as its factorization.

1225075020251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227148.

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 1225075020251 in words is "one trillion, two hundred twenty-five billion, seventy-five million, twenty thousand, two hundred fifty-one".