83222076221 has 2 divisors, whose sum is σ = 83222076222. Its totient is φ = 83222076220.

The previous prime is 83222076181. The next prime is 83222076229. The reversal of 83222076221 is 12267022238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81844627225 + 1377448996 = 286085^2 + 37114^2 .

It is a cyclic number.

It is not a de Polignac number, because 83222076221 - 2³⁴ = 66042207037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83222076229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41611038110 + 41611038111.

It is an arithmetic number, because the mean of its divisors is an integer number (41611038111).

Almost surely, 2^83222076221 is an apocalyptic number.

It is an amenable number.

83222076221 is a deficient number, since it is larger than the sum of its proper divisors (1).

83222076221 is an equidigital number, since it uses as much as digits as its factorization.

83222076221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 83222076221 its reverse (12267022238), we get a palindrome (95489098459).

The spelling of 83222076221 in words is "eighty-three billion, two hundred twenty-two million, seventy-six thousand, two hundred twenty-one".