1220523440324 has 24 divisors (see below), whose sum is σ = 2148503669760. Its totient is φ = 606666042144.

The previous prime is 1220523440273. The next prime is 1220523440327. The reversal of 1220523440324 is 4230443250221.

It is not an unprimeable number, because it can be changed into a prime (1220523440327) 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, 6370967 + ... + 6559745.

It is an arithmetic number, because the mean of its divisors is an integer number (89520986240).

Almost surely, 2^{1220523440324} is an apocalyptic number.

It is an amenable number.

1220523440324 is a deficient number, since it is larger than the sum of its proper divisors (927980229436).

1220523440324 is a wasteful number, since it uses less digits than its factorization.

1220523440324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198299 (or 198297 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 1220523440324 its reverse (4230443250221), we get a palindrome (5450966690545).

The spelling of 1220523440324 in words is "one trillion, two hundred twenty billion, five hundred twenty-three million, four hundred forty thousand, three hundred twenty-four".