2099019821802 has 32 divisors (see below), whose sum is σ = 4262975464320. Its totient is φ = 688877528640.

The previous prime is 2099019821749. The next prime is 2099019821839. The reversal of 2099019821802 is 2081289109902.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3048777 + ... + 3673292.

It is an arithmetic number, because the mean of its divisors is an integer number (133217983260).

Almost surely, 2^{2099019821802} is an apocalyptic number.

2099019821802 is an abundant number, since it is smaller than the sum of its proper divisors (2163955642518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2099019821802 is a wasteful number, since it uses less digits than its factorization.

2099019821802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722878.

The product of its (nonzero) digits is 373248, while the sum is 51.

It can be divided in two parts, 209901 and 9821802, that multiplied together give a palindrome (2061606061602).

The spelling of 2099019821802 in words is "two trillion, ninety-nine billion, nineteen million, eight hundred twenty-one thousand, eight hundred two".