1021165022 has 8 divisors (see below), whose sum is σ = 1535922336. Its totient is φ = 509190912.

The previous prime is 1021165021. The next prime is 1021165037. The reversal of 1021165022 is 2205611201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021164985 and 1021165003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021165021) 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, 694883 + ... + 696350.

It is an arithmetic number, because the mean of its divisors is an integer number (191990292).

Almost surely, 2^1021165022 is an apocalyptic number.

1021165022 is a deficient number, since it is larger than the sum of its proper divisors (514757314).

1021165022 is a wasteful number, since it uses less digits than its factorization.

1021165022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391602.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1021165022 is about 31955.6727671317. The cubic root of 1021165022 is about 1007.0058113227.

Adding to 1021165022 its reverse (2205611201), we get a palindrome (3226776223).

The spelling of 1021165022 in words is "one billion, twenty-one million, one hundred sixty-five thousand, twenty-two".