1122120021121 has 4 divisors (see below), whose sum is σ = 1224130932144. Its totient is φ = 1020109110100.

The previous prime is 1122120021109. The next prime is 1122120021151. The reversal of 1122120021121 is 1211200212211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122120021121 - 2⁵ = 1122120021089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122120021095 and 1122120021104.

It is not an unprimeable number, because it can be changed into a prime (1122120021151) 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, 51005455495 + ... + 51005455516.

It is an arithmetic number, because the mean of its divisors is an integer number (306032733036).

Almost surely, 2^{1122120021121} is an apocalyptic number.

1122120021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122120021121 is a deficient number, since it is larger than the sum of its proper divisors (102010911023).

1122120021121 is a wasteful number, since it uses less digits than its factorization.

1122120021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102010911022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122120021121 its reverse (1211200212211), we get a palindrome (2333320233332).

The spelling of 1122120021121 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".