121022111120121 has 24 divisors (see below), whose sum is σ = 180454506861824. Its totient is φ = 78076285728480.

The previous prime is 121022111120093. The next prime is 121022111120123. The reversal of 121022111120121 is 121021111220121.

It is a happy number.

121022111120121 is a `hidden beast` number, since 1 + 210 + 2 + 211 + 1 + 120 + 121 = 666.

It is not a de Polignac number, because 121022111120121 - 2⁵ = 121022111120089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121022111120094 and 121022111120103.

It is not an unprimeable number, because it can be changed into a prime (121022111120123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831950 + ... + 15665256.

Almost surely, 2^{121022111120121} is an apocalyptic number.

It is an amenable number.

121022111120121 is a deficient number, since it is larger than the sum of its proper divisors (59432395741703).

121022111120121 is a wasteful number, since it uses less digits than its factorization.

121022111120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13864701 (or 13864698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121022111120121 its reverse (121021111220121), we get a palindrome (242043222340242).

The spelling of 121022111120121 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty-one".