1112222021012 has 6 divisors (see below), whose sum is σ = 1946388536778. Its totient is φ = 556111010504.

The previous prime is 1112222020997. The next prime is 1112222021023. The reversal of 1112222021012 is 2101202222111.

It can be written as a sum of positive squares in only one way, i.e., 845009531536 + 267212489476 = 919244^2 + 516926^2 .

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 as a sum of consecutive naturals, namely, 139027752623 + ... + 139027752630.

It is an arithmetic number, because the mean of its divisors is an integer number (324398089463).

Almost surely, 2^{1112222021012} is an apocalyptic number.

It is an amenable number.

1112222021012 is a deficient number, since it is larger than the sum of its proper divisors (834166515766).

1112222021012 is a wasteful number, since it uses less digits than its factorization.

1112222021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278055505257 (or 278055505255 counting only the distinct ones).

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

Adding to 1112222021012 its reverse (2101202222111), we get a palindrome (3213424243123).

The spelling of 1112222021012 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, twenty-one thousand, twelve".