1122121221011 has 8 divisors (see below), whose sum is σ = 1282433918304. Its totient is φ = 961810940160.

The previous prime is 1122121220953. The next prime is 1122121221043. The reversal of 1122121221011 is 1101221212211.

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

It is not a de Polignac number, because 1122121221011 - 2¹⁰ = 1122121219987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122121221311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533891 + ... + 1590371.

It is an arithmetic number, because the mean of its divisors is an integer number (160304239788).

Almost surely, 2^{1122121221011} is an apocalyptic number.

1122121221011 is a deficient number, since it is larger than the sum of its proper divisors (160312697293).

1122121221011 is a wasteful number, since it uses less digits than its factorization.

1122121221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208221.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122121221011 its reverse (1101221212211), we get a palindrome (2223342433222).

The spelling of 1122121221011 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, eleven".