2211230442021 has 16 divisors (see below), whose sum is σ = 2972850585600. Its totient is φ = 1461892341168.

The previous prime is 2211230441971. The next prime is 2211230442049. The reversal of 2211230442021 is 1202440321122.

It is not a de Polignac number, because 2211230442021 - 2¹³ = 2211230433829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211230441982 and 2211230442000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211230442221) 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, 443001 + ... + 2149118.

It is an arithmetic number, because the mean of its divisors is an integer number (185803161600).

Almost surely, 2^{2211230442021} is an apocalyptic number.

It is an amenable number.

2211230442021 is a deficient number, since it is larger than the sum of its proper divisors (761620143579).

2211230442021 is a wasteful number, since it uses less digits than its factorization.

2211230442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594488.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2211230442021 its reverse (1202440321122), we get a palindrome (3413670763143).

The spelling of 2211230442021 in words is "two trillion, two hundred eleven billion, two hundred thirty million, four hundred forty-two thousand, twenty-one".