2021022001111 has 8 divisors (see below), whose sum is σ = 2060838249120. Its totient is φ = 1981268114592.

The previous prime is 2021022001073. The next prime is 2021022001199. The reversal of 2021022001111 is 1111002201202.

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 2021022001111 - 2²⁹ = 2020485130199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021022001091 and 2021022001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021022001711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15524916 + ... + 15654553.

It is an arithmetic number, because the mean of its divisors is an integer number (257604781140).

Almost surely, 2^{2021022001111} is an apocalyptic number.

2021022001111 is a deficient number, since it is larger than the sum of its proper divisors (39816248009).

2021022001111 is a wasteful number, since it uses less digits than its factorization.

2021022001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31180745.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021022001111 its reverse (1111002201202), we get a palindrome (3132024202313).

The spelling of 2021022001111 in words is "two trillion, twenty-one billion, twenty-two million, one thousand, one hundred eleven".