1022221012 has 12 divisors (see below), whose sum is σ = 1801757440. Its totient is φ = 507433176.

The previous prime is 1022220977. The next prime is 1022221049. The reversal of 1022221012 is 2101222201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1022220983 and 1022221001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918708 + ... + 919819.

Almost surely, 2^1022221012 is an apocalyptic number.

It is an amenable number.

1022221012 is a deficient number, since it is larger than the sum of its proper divisors (779536428).

1022221012 is a wasteful number, since it uses less digits than its factorization.

1022221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838670 (or 1838668 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022221012 is about 31972.1912292542. The cubic root of 1022221012 is about 1007.3528077119.

Adding to 1022221012 its reverse (2101222201), we get a palindrome (3123443213).

The spelling of 1022221012 in words is "one billion, twenty-two million, two hundred twenty-one thousand, twelve".