1000221120992 has 48 divisors (see below), whose sum is σ = 1994315178240. Its totient is φ = 493729671552.

The previous prime is 1000221120961. The next prime is 1000221121069. The reversal of 1000221120992 is 2990211220001.

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, 42365063 + ... + 42388665.

It is an arithmetic number, because the mean of its divisors is an integer number (41548232880).

Almost surely, 2^{1000221120992} is an apocalyptic number.

It is an amenable number.

1000221120992 is a deficient number, since it is larger than the sum of its proper divisors (994094057248).

1000221120992 is a wasteful number, since it uses less digits than its factorization.

1000221120992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40455 (or 40447 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

Adding to 1000221120992 its reverse (2990211220001), we get a palindrome (3990432340993).

The spelling of 1000221120992 in words is "one trillion, two hundred twenty-one million, one hundred twenty thousand, nine hundred ninety-two".