121120021121 has 8 divisors (see below), whose sum is σ = 132140745984. Its totient is φ = 110100931920.

The previous prime is 121120021063. The next prime is 121120021147.

121120021121 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 121120021121 - 2²⁶ = 121052912257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121120021096 and 121120021105.

It is not an unprimeable number, because it can be changed into a prime (121120021721) 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, 251441 + ... + 552686.

It is an arithmetic number, because the mean of its divisors is an integer number (16517593248).

Almost surely, 2^121120021121 is an apocalyptic number.

121120021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121120021121 is a deficient number, since it is larger than the sum of its proper divisors (11020724863).

121120021121 is a wasteful number, since it uses less digits than its factorization.

121120021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817831.

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

It can be divided in two parts, 1211200 and 21121, that added together give a palindrome (1232321).

The spelling of 121120021121 in words is "one hundred twenty-one billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".