1020221212012 has 12 divisors (see below), whose sum is σ = 1785407083936. Its totient is φ = 510104902320.

The previous prime is 1020221212001. The next prime is 1020221212051. The reversal of 1020221212012 is 2102121220201.

It is a happy 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, 1009983 + ... + 1749430.

Almost surely, 2^{1020221212012} is an apocalyptic number.

It is an amenable number.

1020221212012 is a deficient number, since it is larger than the sum of its proper divisors (765185871924).

1020221212012 is a wasteful number, since it uses less digits than its factorization.

1020221212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851848 (or 2851846 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1020221212012 its reverse (2102121220201), we get a palindrome (3122342432213).

The spelling of 1020221212012 in words is "one trillion, twenty billion, two hundred twenty-one million, two hundred twelve thousand, twelve".