1021222101112 has 32 divisors (see below), whose sum is σ = 1933877808720. Its totient is φ = 505522022400.

The previous prime is 1021222101073. The next prime is 1021222101157. The reversal of 1021222101112 is 2111012221201.

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 7 ways as a sum of consecutive naturals, for example, 15947863 + ... + 16011769.

Almost surely, 2^{1021222101112} is an apocalyptic number.

It is an amenable number.

1021222101112 is a deficient number, since it is larger than the sum of its proper divisors (912655707608).

1021222101112 is a wasteful number, since it uses less digits than its factorization.

1021222101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83791 (or 83787 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021222101112 its reverse (2111012221201), we get a palindrome (3132234322313).

The spelling of 1021222101112 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred twelve".