1121012022011 has 4 divisors (see below), whose sum is σ = 1281156596592. Its totient is φ = 960867447432.

The previous prime is 1121012021963. The next prime is 1121012022023. The reversal of 1121012022011 is 1102202101211.

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 1121012022011 - 2³⁸ = 846134115067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121012022071) 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, 80072287280 + ... + 80072287293.

It is an arithmetic number, because the mean of its divisors is an integer number (320289149148).

Almost surely, 2^{1121012022011} is an apocalyptic number.

1121012022011 is a deficient number, since it is larger than the sum of its proper divisors (160144574581).

1121012022011 is an equidigital number, since it uses as much as digits as its factorization.

1121012022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160144574580.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121012022011 its reverse (1102202101211), we get a palindrome (2223214123222).

The spelling of 1121012022011 in words is "one trillion, one hundred twenty-one billion, twelve million, twenty-two thousand, eleven".