1001121202011 has 48 divisors (see below), whose sum is σ = 1606512852000. Its totient is φ = 552270523392.

The previous prime is 1001121201877. The next prime is 1001121202019. The reversal of 1001121202011 is 1102021211001.

It is not a de Polignac number, because 1001121202011 - 2⁹ = 1001121201499 is a prime.

It is a super-2 number, since 2×1001121202011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001121202019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61587961 + ... + 61604213.

It is an arithmetic number, because the mean of its divisors is an integer number (33469017750).

Almost surely, 2^{1001121202011} is an apocalyptic number.

1001121202011 is a deficient number, since it is larger than the sum of its proper divisors (605391649989).

1001121202011 is a wasteful number, since it uses less digits than its factorization.

1001121202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30748 (or 30741 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001121202011 its reverse (1102021211001), we get a palindrome (2103142413012).

The spelling of 1001121202011 in words is "one trillion, one billion, one hundred twenty-one million, two hundred two thousand, eleven".