2021111020002 has 32 divisors (see below), whose sum is σ = 4218517941120. Its totient is φ = 644328622080.

The previous prime is 2021111019923. The next prime is 2021111020039. The reversal of 2021111020002 is 2000201111202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021111020002.

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, 122274 + ... + 2014242.

It is an arithmetic number, because the mean of its divisors is an integer number (131828685660).

Almost surely, 2^{2021111020002} is an apocalyptic number.

2021111020002 is an abundant number, since it is smaller than the sum of its proper divisors (2197406921118).

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

2021111020002 is a wasteful number, since it uses less digits than its factorization.

2021111020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899738.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021111020002 its reverse (2000201111202), we get a palindrome (4021312131204).

The spelling of 2021111020002 in words is "two trillion, twenty-one billion, one hundred eleven million, twenty thousand, two".