2111322034421 has 2 divisors, whose sum is σ = 2111322034422. Its totient is φ = 2111322034420.

The previous prime is 2111322034417. The next prime is 2111322034463. The reversal of 2111322034421 is 1244302231112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811002690225 + 300319344196 = 1345735^2 + 548014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111322034421 - 2² = 2111322034417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111322034721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055661017210 + 1055661017211.

It is an arithmetic number, because the mean of its divisors is an integer number (1055661017211).

Almost surely, 2^{2111322034421} is an apocalyptic number.

It is an amenable number.

2111322034421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111322034421 is an equidigital number, since it uses as much as digits as its factorization.

2111322034421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2111322034421 its reverse (1244302231112), we get a palindrome (3355624265533).

The spelling of 2111322034421 in words is "two trillion, one hundred eleven billion, three hundred twenty-two million, thirty-four thousand, four hundred twenty-one".