121010210220201 has 16 divisors (see below), whose sum is σ = 163780008099840. Its totient is φ = 79459173034640.

The previous prime is 121010210220173. The next prime is 121010210220209. The reversal of 121010210220201 is 102022012010121.

It is a cyclic number.

It is not a de Polignac number, because 121010210220201 - 2²⁶ = 121010143111337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121010210220209) 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, 278547945 + ... + 278982038.

It is an arithmetic number, because the mean of its divisors is an integer number (10236250506240).

Almost surely, 2^{121010210220201} is an apocalyptic number.

It is an amenable number.

121010210220201 is a deficient number, since it is larger than the sum of its proper divisors (42769797879639).

121010210220201 is a wasteful number, since it uses less digits than its factorization.

121010210220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557531076.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121010210220201 its reverse (102022012010121), we get a palindrome (223032222230322).

The spelling of 121010210220201 in words is "one hundred twenty-one trillion, ten billion, two hundred ten million, two hundred twenty thousand, two hundred one".