2021002222111 has 8 divisors (see below), whose sum is σ = 2094179521280. Its totient is φ = 1949014797912.

The previous prime is 2021002222103. The next prime is 2021002222153. The reversal of 2021002222111 is 1112222001202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2021002222111 - 2³ = 2021002222103 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 (2021002222181) 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 7 ways as a sum of consecutive naturals, for example, 297465285 + ... + 297472078.

It is an arithmetic number, because the mean of its divisors is an integer number (261772440160).

Almost surely, 2^{2021002222111} is an apocalyptic number.

2021002222111 is a deficient number, since it is larger than the sum of its proper divisors (73177299169).

2021002222111 is an equidigital number, since it uses as much as digits as its factorization.

2021002222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594937485.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021002222111 its reverse (1112222001202), we get a palindrome (3133224223313).

The spelling of 2021002222111 in words is "two trillion, twenty-one billion, two million, two hundred twenty-two thousand, one hundred eleven".