201102022212121 has 4 divisors (see below), whose sum is σ = 201409988556132. Its totient is φ = 200794055868112.

The previous prime is 201102022212083. The next prime is 201102022212131. The reversal of 201102022212121 is 121212220201102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141720572576025 + 59381449636096 = 11904645^2 + 7705936^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102022212121 - 2²⁹ = 201101485341209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201102022212131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153983171026 + ... + 153983172331.

It is an arithmetic number, because the mean of its divisors is an integer number (50352497139033).

Almost surely, 2^{201102022212121} is an apocalyptic number.

It is an amenable number.

201102022212121 is a deficient number, since it is larger than the sum of its proper divisors (307966344011).

201102022212121 is an equidigital number, since it uses as much as digits as its factorization.

201102022212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307966344010.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201102022212121 its reverse (121212220201102), we get a palindrome (322314242413223).

The spelling of 201102022212121 in words is "two hundred one trillion, one hundred two billion, twenty-two million, two hundred twelve thousand, one hundred twenty-one".