1223120780297 has 16 divisors (see below), whose sum is σ = 1345281799680. Its totient is φ = 1105134713472.

The previous prime is 1223120780237. The next prime is 1223120780311. The reversal of 1223120780297 is 7920870213221.

It is a cyclic number.

It is not a de Polignac number, because 1223120780297 - 2⁸ = 1223120780041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223120780227) 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, 3243353 + ... + 3600774.

It is an arithmetic number, because the mean of its divisors is an integer number (84080112480).

Almost surely, 2^{1223120780297} is an apocalyptic number.

It is an amenable number.

1223120780297 is a deficient number, since it is larger than the sum of its proper divisors (122161019383).

1223120780297 is a wasteful number, since it uses less digits than its factorization.

1223120780297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844432.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 1223120780297 in words is "one trillion, two hundred twenty-three billion, one hundred twenty million, seven hundred eighty thousand, two hundred ninety-seven".