1220120495 has 8 divisors (see below), whose sum is σ = 1597248720. Its totient is φ = 887360320.

The previous prime is 1220120479. The next prime is 1220120513. The reversal of 1220120495 is 5940210221.

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

It is not a de Polignac number, because 1220120495 - 2⁴ = 1220120479 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, 11091950 + ... + 11092059.

It is an arithmetic number, because the mean of its divisors is an integer number (199656090).

Almost surely, 2^1220120495 is an apocalyptic number.

1220120495 is a deficient number, since it is larger than the sum of its proper divisors (377128225).

1220120495 is a wasteful number, since it uses less digits than its factorization.

1220120495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22184025.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1220120495 is about 34930.2232314653. The cubic root of 1220120495 is about 1068.5649072667.

The spelling of 1220120495 in words is "one billion, two hundred twenty million, one hundred twenty thousand, four hundred ninety-five".