1220240065345 has 8 divisors (see below), whose sum is σ = 1673472089664. Its totient is φ = 836736044784.

The previous prime is 1220240065313. The next prime is 1220240065381. The reversal of 1220240065345 is 5435600420221.

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 1220240065345 - 2⁵ = 1220240065313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220240065345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17432000899 + ... + 17432000968.

It is an arithmetic number, because the mean of its divisors is an integer number (209184011208).

Almost surely, 2^{1220240065345} is an apocalyptic number.

It is an amenable number.

1220240065345 is a deficient number, since it is larger than the sum of its proper divisors (453232024319).

1220240065345 is an equidigital number, since it uses as much as digits as its factorization.

1220240065345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34864001879.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1220240065345 its reverse (5435600420221), we get a palindrome (6655840485566).

The spelling of 1220240065345 in words is "one trillion, two hundred twenty billion, two hundred forty million, sixty-five thousand, three hundred forty-five".