1021112210011 has 4 divisors (see below), whose sum is σ = 1032585381000. Its totient is φ = 1009639039024.

The previous prime is 1021112210009. The next prime is 1021112210051. The reversal of 1021112210011 is 1100122111201.

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 1021112210011 - 2¹ = 1021112210009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021112209973 and 1021112210000.

It is not an unprimeable number, because it can be changed into a prime (1021112210051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5736585361 + ... + 5736585538.

It is an arithmetic number, because the mean of its divisors is an integer number (258146345250).

Almost surely, 2^{1021112210011} is an apocalyptic number.

1021112210011 is a deficient number, since it is larger than the sum of its proper divisors (11473170989).

1021112210011 is an equidigital number, since it uses as much as digits as its factorization.

1021112210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473170988.

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

Adding to 1021112210011 its reverse (1100122111201), we get a palindrome (2121234321212).

The spelling of 1021112210011 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred ten thousand, eleven".