1022212171 has 2 divisors, whose sum is σ = 1022212172. Its totient is φ = 1022212170.

The previous prime is 1022212157. The next prime is 1022212201. The reversal of 1022212171 is 1712122201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022212171 - 2¹³ = 1022203979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022212151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511106085 + 511106086.

It is an arithmetic number, because the mean of its divisors is an integer number (511106086).

Almost surely, 2^1022212171 is an apocalyptic number.

1022212171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022212171 is an equidigital number, since it uses as much as digits as its factorization.

1022212171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1022212171 is about 31972.0529681783. The cubic root of 1022212171 is about 1007.3499035676.

Adding to 1022212171 its reverse (1712122201), we get a palindrome (2734334372).

The spelling of 1022212171 in words is "one billion, twenty-two million, two hundred twelve thousand, one hundred seventy-one".