1021320122 has 8 divisors (see below), whose sum is σ = 1532215872. Its totient is φ = 510581500.

The previous prime is 1021320107. The next prime is 1021320143. The reversal of 1021320122 is 2210231201.

It is a happy number.

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 = 1021320097 and 1021320106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21404 + ... + 50007.

It is an arithmetic number, because the mean of its divisors is an integer number (191526984).

Almost surely, 2^1021320122 is an apocalyptic number.

1021320122 is a deficient number, since it is larger than the sum of its proper divisors (510895750).

1021320122 is an equidigital number, since it uses as much as digits as its factorization.

1021320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78564.

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

The square root of 1021320122 is about 31958.0994741552. The cubic root of 1021320122 is about 1007.0567918829.

Adding to 1021320122 its reverse (2210231201), we get a palindrome (3231551323).

The spelling of 1021320122 in words is "one billion, twenty-one million, three hundred twenty thousand, one hundred twenty-two".