121022202220121 has 16 divisors (see below), whose sum is σ = 123584034522624. Its totient is φ = 118484922334464.

The previous prime is 121022202220111. The next prime is 121022202220123.

121022202220121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 121022202220121 - 2³⁴ = 121005022350937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121022202220093 and 121022202220102.

It is not an unprimeable number, because it can be changed into a prime (121022202220123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147275036 + ... + 148094498.

It is an arithmetic number, because the mean of its divisors is an integer number (7724002157664).

Almost surely, 2^{121022202220121} is an apocalyptic number.

It is an amenable number.

121022202220121 is a deficient number, since it is larger than the sum of its proper divisors (2561832302503).

121022202220121 is a wasteful number, since it uses less digits than its factorization.

121022202220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834440.

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 12102220 and 2220121, that added together give a palindrome (14322341).

The spelling of 121022202220121 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".