1022221071 has 12 divisors (see below), whose sum is σ = 1554254520. Its totient is φ = 645613200.

The previous prime is 1022221051. The next prime is 1022221091. The reversal of 1022221071 is 1701222201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1022221051) and next prime (1022221091).

It is not a de Polignac number, because 1022221071 - 2²⁵ = 988666639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2988780 + ... + 2989121.

It is an arithmetic number, because the mean of its divisors is an integer number (129521210).

Almost surely, 2^1022221071 is an apocalyptic number.

1022221071 is a deficient number, since it is larger than the sum of its proper divisors (532033449).

1022221071 is a wasteful number, since it uses less digits than its factorization.

1022221071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977926 (or 5977923 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1022221071 is about 31972.1921519310. The cubic root of 1022221071 is about 1007.3528270925.

Adding to 1022221071 its reverse (1701222201), we get a palindrome (2723443272).

The spelling of 1022221071 in words is "one billion, twenty-two million, two hundred twenty-one thousand, seventy-one".