1220435140245 has 8 divisors (see below), whose sum is σ = 1952696224416. Its totient is φ = 650898741456.

The previous prime is 1220435140219. The next prime is 1220435140279. The reversal of 1220435140245 is 5420415340221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220435140245 - 2¹⁵ = 1220435107477 is a prime.

It is a congruent number.

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, 40681171327 + ... + 40681171356.

It is an arithmetic number, because the mean of its divisors is an integer number (244087028052).

Almost surely, 2^{1220435140245} is an apocalyptic number.

1220435140245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220435140245 is a deficient number, since it is larger than the sum of its proper divisors (732261084171).

1220435140245 is an equidigital number, since it uses as much as digits as its factorization.

1220435140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81362342691.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 1220435140245 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, one hundred forty thousand, two hundred forty-five".