1220105354305 has 16 divisors (see below), whose sum is σ = 1486790532864. Its totient is φ = 961012704960.

The previous prime is 1220105354269. The next prime is 1220105354317. The reversal of 1220105354305 is 5034535010221.

It is not a de Polignac number, because 1220105354305 - 2²³ = 1220096965697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2105682 + ... + 2621851.

It is an arithmetic number, because the mean of its divisors is an integer number (92924408304).

Almost surely, 2^{1220105354305} is an apocalyptic number.

It is an amenable number.

1220105354305 is a deficient number, since it is larger than the sum of its proper divisors (266685178559).

1220105354305 is an equidigital number, since it uses as much as digits as its factorization.

1220105354305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728336.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 1220105354305 in words is "one trillion, two hundred twenty billion, one hundred five million, three hundred fifty-four thousand, three hundred five".