2821783282101 has 12 divisors (see below), whose sum is σ = 4658181926112. Its totient is φ = 1612447589736.

The previous prime is 2821783282081. The next prime is 2821783282151. The reversal of 2821783282101 is 1012823871282.

2821783282101 is a `hidden beast` number, since 2 + 8 + 217 + 8 + 328 + 2 + 101 = 666.

It is not a de Polignac number, because 2821783282101 - 2⁹ = 2821783281589 is a prime.

It is a super-2 number, since 2×2821783282101² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821783282151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22395105351 + ... + 22395105476.

It is an arithmetic number, because the mean of its divisors is an integer number (388181827176).

Almost surely, 2^{2821783282101} is an apocalyptic number.

2821783282101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2821783282101 is a deficient number, since it is larger than the sum of its proper divisors (1836398644011).

2821783282101 is a wasteful number, since it uses less digits than its factorization.

2821783282101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44790210840 (or 44790210837 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 2821783282101 in words is "two trillion, eight hundred twenty-one billion, seven hundred eighty-three million, two hundred eighty-two thousand, one hundred one".