3011123202221 has 2 divisors, whose sum is σ = 3011123202222. Its totient is φ = 3011123202220.

The previous prime is 3011123202137. The next prime is 3011123202223. The reversal of 3011123202221 is 1222023211103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1756656001321 + 1254467200900 = 1325389^2 + 1120030^2 .

It is a cyclic number.

It is not a de Polignac number, because 3011123202221 - 2²² = 3011119007917 is a prime.

Together with 3011123202223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3011123202193 and 3011123202202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3011123202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1505561601110 + 1505561601111.

It is an arithmetic number, because the mean of its divisors is an integer number (1505561601111).

Almost surely, 2^{3011123202221} is an apocalyptic number.

It is an amenable number.

3011123202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3011123202221 is an equidigital number, since it uses as much as digits as its factorization.

3011123202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3011123202221 its reverse (1222023211103), we get a palindrome (4233146413324).

The spelling of 3011123202221 in words is "three trillion, eleven billion, one hundred twenty-three million, two hundred two thousand, two hundred twenty-one".