1022001671 has 4 divisors (see below), whose sum is σ = 1022070600. Its totient is φ = 1021932744.

The previous prime is 1022001637. The next prime is 1022001691. The reversal of 1022001671 is 1761002201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1761002201 = 7 ⋅251571743.

It is a cyclic number.

It is not a de Polignac number, because 1022001671 - 2¹⁴ = 1021985287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022001691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081 + ... + 45258.

It is an arithmetic number, because the mean of its divisors is an integer number (255517650).

Almost surely, 2^1022001671 is an apocalyptic number.

1022001671 is a deficient number, since it is larger than the sum of its proper divisors (68929).

1022001671 is an equidigital number, since it uses as much as digits as its factorization.

1022001671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68928.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1022001671 is about 31968.7608611907. The cubic root of 1022001671 is about 1007.2807523295.

Adding to 1022001671 its reverse (1761002201), we get a palindrome (2783003872).

The spelling of 1022001671 in words is "one billion, twenty-two million, one thousand, six hundred seventy-one".