1121220102121 has 8 divisors (see below), whose sum is σ = 1322729705984. Its totient is φ = 930044324160.

The previous prime is 1121220102073. The next prime is 1121220102143. The reversal of 1121220102121 is 1212010221211.

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

It is not a de Polignac number, because 1121220102121 - 2¹⁹ = 1121219577833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121220102095 and 1121220102104.

It is not an unprimeable number, because it can be changed into a prime (1121220132121) 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, 2583456240 + ... + 2583456673.

It is an arithmetic number, because the mean of its divisors is an integer number (165341213248).

Almost surely, 2^{1121220102121} is an apocalyptic number.

It is an amenable number.

1121220102121 is a deficient number, since it is larger than the sum of its proper divisors (201509603863).

1121220102121 is an equidigital number, since it uses as much as digits as its factorization.

1121220102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166912951.

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

Adding to 1121220102121 its reverse (1212010221211), we get a palindrome (2333230323332).

The spelling of 1121220102121 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, one hundred twenty-one".