1011102122011 has 4 divisors (see below), whose sum is σ = 1012080924712. Its totient is φ = 1010123319312.

The previous prime is 1011102121963. The next prime is 1011102122161. The reversal of 1011102122011 is 1102212011101.

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 1011102122011 - 2¹⁵ = 1011102089243 is a prime.

It is a super-2 number, since 2×1011102122011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011102121982 and 1011102122000.

It is not an unprimeable number, because it can be changed into a prime (1011102182011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489399801 + ... + 489401866.

It is an arithmetic number, because the mean of its divisors is an integer number (253020231178).

Almost surely, 2^{1011102122011} is an apocalyptic number.

1011102122011 is a deficient number, since it is larger than the sum of its proper divisors (978802701).

1011102122011 is an equidigital number, since it uses as much as digits as its factorization.

1011102122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978802700.

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

Adding to 1011102122011 its reverse (1102212011101), we get a palindrome (2113314133112).

The spelling of 1011102122011 in words is "one trillion, eleven billion, one hundred two million, one hundred twenty-two thousand, eleven".