1021321222 has 8 divisors (see below), whose sum is σ = 1538672400. Its totient is φ = 508430424.

The previous prime is 1021321219. The next prime is 1021321237. The reversal of 1021321222 is 2221231201.

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 = 1021321196 and 1021321205.

It is a congruent number.

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, 1114522 + ... + 1115437.

It is an arithmetic number, because the mean of its divisors is an integer number (192334050).

Almost surely, 2^1021321222 is an apocalyptic number.

1021321222 is a deficient number, since it is larger than the sum of its proper divisors (517351178).

1021321222 is a wasteful number, since it uses less digits than its factorization.

1021321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230190.

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

The square root of 1021321222 is about 31958.1166841853. The cubic root of 1021321222 is about 1007.0571534287.

Adding to 1021321222 its reverse (2221231201), we get a palindrome (3242552423).

The spelling of 1021321222 in words is "one billion, twenty-one million, three hundred twenty-one thousand, two hundred twenty-two".