1225005201997 has 16 divisors (see below), whose sum is σ = 1286263722240. Its totient is φ = 1164416885632.

The previous prime is 1225005201971. The next prime is 1225005202021. The reversal of 1225005201997 is 7991025005221.

It is a cyclic number.

It is not a de Polignac number, because 1225005201997 - 2¹⁹ = 1225004677709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225005201907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15050703 + ... + 15131875.

It is an arithmetic number, because the mean of its divisors is an integer number (80391482640).

Almost surely, 2^{1225005201997} is an apocalyptic number.

It is an amenable number.

1225005201997 is a deficient number, since it is larger than the sum of its proper divisors (61258520243).

1225005201997 is a wasteful number, since it uses less digits than its factorization.

1225005201997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85292.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 1225005201997 in words is "one trillion, two hundred twenty-five billion, five million, two hundred one thousand, nine hundred ninety-seven".