1122121020121 has 4 divisors (see below), whose sum is σ = 1181180021200. Its totient is φ = 1063062019044.

The previous prime is 1122121020071. The next prime is 1122121020169. The reversal of 1122121020121 is 1210201212211.

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 1122121020121 - 2²³ = 1122112631513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122121020095 and 1122121020104.

It is not an unprimeable number, because it can be changed into a prime (1122121020191) 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, 29529500511 + ... + 29529500548.

It is an arithmetic number, because the mean of its divisors is an integer number (295295005300).

Almost surely, 2^{1122121020121} is an apocalyptic number.

It is an amenable number.

1122121020121 is a deficient number, since it is larger than the sum of its proper divisors (59059001079).

1122121020121 is an equidigital number, since it uses as much as digits as its factorization.

1122121020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59059001078.

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

Adding to 1122121020121 its reverse (1210201212211), we get a palindrome (2332322232332).

The spelling of 1122121020121 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty thousand, one hundred twenty-one".