83221211371 has 2 divisors, whose sum is σ = 83221211372. Its totient is φ = 83221211370.

The previous prime is 83221211317. The next prime is 83221211407. The reversal of 83221211371 is 17311212238.

Together with previous prime (83221211317) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83221211371 - 2¹³ = 83221203179 is a prime.

It is not a weakly prime, because it can be changed into another prime (83221211471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41610605685 + 41610605686.

It is an arithmetic number, because the mean of its divisors is an integer number (41610605686).

Almost surely, 2^83221211371 is an apocalyptic number.

83221211371 is a deficient number, since it is larger than the sum of its proper divisors (1).

83221211371 is an equidigital number, since it uses as much as digits as its factorization.

83221211371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The spelling of 83221211371 in words is "eighty-three billion, two hundred twenty-one million, two hundred eleven thousand, three hundred seventy-one".