1001001221122 has 16 divisors (see below), whose sum is σ = 1716098086080. Its totient is φ = 428976525168.

The previous prime is 1001001221119. The next prime is 1001001221137. The reversal of 1001001221122 is 2211221001001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739472 + ... + 2242267.

It is an arithmetic number, because the mean of its divisors is an integer number (107256130380).

Almost surely, 2^{1001001221122} is an apocalyptic number.

1001001221122 is a deficient number, since it is larger than the sum of its proper divisors (715096864958).

1001001221122 is a wasteful number, since it uses less digits than its factorization.

1001001221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999705.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001001221122 its reverse (2211221001001), we get a palindrome (3212222222123).

It can be divided in two parts, 1001001 and 221122, that multiplied together give a palindrome (221343343122).

The spelling of 1001001221122 in words is "one trillion, one billion, one million, two hundred twenty-one thousand, one hundred twenty-two".