2112020455 has 4 divisors (see below), whose sum is σ = 2534424552. Its totient is φ = 1689616360.

The previous prime is 2112020453. The next prime is 2112020461. The reversal of 2112020455 is 5540202112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2112020455 - 2¹ = 2112020453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112020453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211202041 + ... + 211202050.

It is an arithmetic number, because the mean of its divisors is an integer number (633606138).

Almost surely, 2^2112020455 is an apocalyptic number.

2112020455 is a deficient number, since it is larger than the sum of its proper divisors (422404097).

2112020455 is an equidigital number, since it uses as much as digits as its factorization.

2112020455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422404096.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2112020455 is about 45956.7237191687. The cubic root of 2112020455 is about 1283.0178740377.

Adding to 2112020455 its reverse (5540202112), we get a palindrome (7652222567).

The spelling of 2112020455 in words is "two billion, one hundred twelve million, twenty thousand, four hundred fifty-five".