2021200022011 has 4 divisors (see below), whose sum is σ = 2021270566672. Its totient is φ = 2021129477352.

The previous prime is 2021200021993. The next prime is 2021200022027. The reversal of 2021200022011 is 1102200021202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021200022011 - 2⁹ = 2021200021499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021200021982 and 2021200022000.

It is not an unprimeable number, because it can be changed into a prime (2021200022411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35229336 + ... + 35286661.

It is an arithmetic number, because the mean of its divisors is an integer number (505317641668).

Almost surely, 2^{2021200022011} is an apocalyptic number.

2021200022011 is a deficient number, since it is larger than the sum of its proper divisors (70544661).

2021200022011 is an equidigital number, since it uses as much as digits as its factorization.

2021200022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70544660.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021200022011 its reverse (1102200021202), we get a palindrome (3123400043213).

The spelling of 2021200022011 in words is "two trillion, twenty-one billion, two hundred million, twenty-two thousand, eleven".