1011020122111 has 8 divisors (see below), whose sum is σ = 1017537878448. Its totient is φ = 1004512608000.

The previous prime is 1011020122097. The next prime is 1011020122171. The reversal of 1011020122111 is 1112210201101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011020122111 - 2¹⁷ = 1011019991039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011020122091 and 1011020122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011020122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2362450 + ... + 2757391.

It is an arithmetic number, because the mean of its divisors is an integer number (127192234806).

Almost surely, 2^{1011020122111} is an apocalyptic number.

1011020122111 is a deficient number, since it is larger than the sum of its proper divisors (6517756337).

1011020122111 is a wasteful number, since it uses less digits than its factorization.

1011020122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121113.

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

Adding to 1011020122111 its reverse (1112210201101), we get a palindrome (2123230323212).

The spelling of 1011020122111 in words is "one trillion, eleven billion, twenty million, one hundred twenty-two thousand, one hundred eleven".