1021310222 has 4 divisors (see below), whose sum is σ = 1531965336. Its totient is φ = 510655110.

The previous prime is 1021310201. The next prime is 1021310273. The reversal of 1021310222 is 2220131201.

It is a happy number.

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 = 1021310197 and 1021310206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255327554 + ... + 255327557.

It is an arithmetic number, because the mean of its divisors is an integer number (382991334).

Almost surely, 2^1021310222 is an apocalyptic number.

1021310222 is a deficient number, since it is larger than the sum of its proper divisors (510655114).

1021310222 is an equidigital number, since it uses as much as digits as its factorization.

1021310222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510655113.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021310222 is about 31957.9445834678. The cubic root of 1021310222 is about 1007.0535379588.

Adding to 1021310222 its reverse (2220131201), we get a palindrome (3241441423).

The spelling of 1021310222 in words is "one billion, twenty-one million, three hundred ten thousand, two hundred twenty-two".