1022212121012 has 24 divisors (see below), whose sum is σ = 1947954136800. Its totient is φ = 467508990816.

The previous prime is 1022212120987. The next prime is 1022212121057. The reversal of 1022212121012 is 2101212122201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231897098 + ... + 231901505.

It is an arithmetic number, because the mean of its divisors is an integer number (81164755700).

Almost surely, 2^{1022212121012} is an apocalyptic number.

It is an amenable number.

1022212121012 is a deficient number, since it is larger than the sum of its proper divisors (925742015788).

1022212121012 is a wasteful number, since it uses less digits than its factorization.

1022212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463798655 (or 463798653 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1022212121012 its reverse (2101212122201), we get a palindrome (3123424243213).

The spelling of 1022212121012 in words is "one trillion, twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, twelve".