1021143022 has 4 divisors (see below), whose sum is σ = 1531714536. Its totient is φ = 510571510.

The previous prime is 1021143017. The next prime is 1021143023. The reversal of 1021143022 is 2203411201.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021142987 and 1021143005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021143023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255285754 + ... + 255285757.

It is an arithmetic number, because the mean of its divisors is an integer number (382928634).

Almost surely, 2^1021143022 is an apocalyptic number.

1021143022 is a deficient number, since it is larger than the sum of its proper divisors (510571514).

1021143022 is an equidigital number, since it uses as much as digits as its factorization.

1021143022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510571513.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1021143022 is about 31955.3285384457. The cubic root of 1021143022 is about 1006.9985796196.

Adding to 1021143022 its reverse (2203411201), we get a palindrome (3224554223).

The spelling of 1021143022 in words is "one billion, twenty-one million, one hundred forty-three thousand, twenty-two".