1020122120011 has 4 divisors (see below), whose sum is σ = 1020145712400. Its totient is φ = 1020098527624.

The previous prime is 1020122120009. The next prime is 1020122120071. The reversal of 1020122120011 is 1100212210201.

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 1020122120011 - 2¹ = 1020122120009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020122119973 and 1020122120000.

It is not an unprimeable number, because it can be changed into a prime (1020122120071) 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, 11731216 + ... + 11817853.

It is an arithmetic number, because the mean of its divisors is an integer number (255036428100).

Almost surely, 2^{1020122120011} is an apocalyptic number.

1020122120011 is a deficient number, since it is larger than the sum of its proper divisors (23592389).

1020122120011 is an equidigital number, since it uses as much as digits as its factorization.

1020122120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592388.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020122120011 its reverse (1100212210201), we get a palindrome (2120334330212).

The spelling of 1020122120011 in words is "one trillion, twenty billion, one hundred twenty-two million, one hundred twenty thousand, eleven".