1011012212011 has 4 divisors (see below), whose sum is σ = 1011121650000. Its totient is φ = 1010902774024.

The previous prime is 1011012212009. The next prime is 1011012212017. The reversal of 1011012212011 is 1102122101101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011012212011 - 2¹ = 1011012212009 is a prime.

It is a super-3 number, since 3×1011012212011³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011012211982 and 1011012212000.

It is not an unprimeable number, because it can be changed into a prime (1011012212017) 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 3 ways as a sum of consecutive naturals, for example, 54705136 + ... + 54723613.

It is an arithmetic number, because the mean of its divisors is an integer number (252780412500).

Almost surely, 2^{1011012212011} is an apocalyptic number.

1011012212011 is a deficient number, since it is larger than the sum of its proper divisors (109437989).

1011012212011 is an equidigital number, since it uses as much as digits as its factorization.

1011012212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109437988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011012212011 its reverse (1102122101101), we get a palindrome (2113134313112).

The spelling of 1011012212011 in words is "one trillion, eleven billion, twelve million, two hundred twelve thousand, eleven".