201120122021 has 16 divisors (see below), whose sum is σ = 262093192704. Its totient is φ = 149767536384.

The previous prime is 201120121981. The next prime is 201120122023. The reversal of 201120122021 is 120221021102.

201120122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201120122021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201120121987 and 201120122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120122023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65001725 + ... + 65004818.

It is an arithmetic number, because the mean of its divisors is an integer number (16380824544).

Almost surely, 2^201120122021 is an apocalyptic number.

It is an amenable number.

201120122021 is a deficient number, since it is larger than the sum of its proper divisors (60973070683).

201120122021 is a wasteful number, since it uses less digits than its factorization.

201120122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130006580.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201120122021 its reverse (120221021102), we get a palindrome (321341143123).

The spelling of 201120122021 in words is "two hundred one billion, one hundred twenty million, one hundred twenty-two thousand, twenty-one".