1001210011011 has 48 divisors (see below), whose sum is σ = 1672948402944. Its totient is φ = 565144506432.

The previous prime is 1001210011007. The next prime is 1001210011019. The reversal of 1001210011011 is 1101100121001.

It is not a de Polignac number, because 1001210011011 - 2² = 1001210011007 is a prime.

It is a super-2 number, since 2×1001210011011² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1001210010984 and 1001210011002.

It is not an unprimeable number, because it can be changed into a prime (1001210011019) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 62933520 + ... + 62949426.

It is an arithmetic number, because the mean of its divisors is an integer number (34853091728).

Almost surely, 2^{1001210011011} is an apocalyptic number.

1001210011011 is a deficient number, since it is larger than the sum of its proper divisors (671738391933).

1001210011011 is a wasteful number, since it uses less digits than its factorization.

1001210011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28040 (or 28037 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1001210011011 its reverse (1101100121001), we get a palindrome (2102310132012).

The spelling of 1001210011011 in words is "one trillion, one billion, two hundred ten million, eleven thousand, eleven".