1011001212011 has 16 divisors (see below), whose sum is σ = 1195609256640. Its totient is φ = 836454837120.

The previous prime is 1011001212007. The next prime is 1011001212019. The reversal of 1011001212011 is 1102121001101.

It is not a de Polignac number, because 1011001212011 - 2² = 1011001212007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011001211983 and 1011001212001.

It is not an unprimeable number, because it can be changed into a prime (1011001212019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22001 + ... + 1422141.

It is an arithmetic number, because the mean of its divisors is an integer number (74725578540).

Almost surely, 2^{1011001212011} is an apocalyptic number.

1011001212011 is a deficient number, since it is larger than the sum of its proper divisors (184608044629).

1011001212011 is a wasteful number, since it uses less digits than its factorization.

1011001212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403734.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011001212011 its reverse (1102121001101), we get a palindrome (2113122213112).

The spelling of 1011001212011 in words is "one trillion, eleven billion, one million, two hundred twelve thousand, eleven".