2211000111021 has 16 divisors (see below), whose sum is σ = 3180469186944. Its totient is φ = 1358172682944.

The previous prime is 2211000110993. The next prime is 2211000111049. The reversal of 2211000111021 is 1201110001122.

It is an interprime number because it is at equal distance from previous prime (2211000110993) and next prime (2211000111049).

It is not a de Polignac number, because 2211000111021 - 2¹¹ = 2211000108973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211000110988 and 2211000111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211000111091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50869041 + ... + 50912486.

It is an arithmetic number, because the mean of its divisors is an integer number (198779324184).

Almost surely, 2^{2211000111021} is an apocalyptic number.

It is an amenable number.

2211000111021 is a deficient number, since it is larger than the sum of its proper divisors (969469075923).

2211000111021 is a wasteful number, since it uses less digits than its factorization.

2211000111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101782100.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2211000111021 its reverse (1201110001122), we get a palindrome (3412110112143).

The spelling of 2211000111021 in words is "two trillion, two hundred eleven billion, one hundred eleven thousand, twenty-one".