201010121121 has 16 divisors (see below), whose sum is σ = 289000434240. Its totient is φ = 123857326080.

The previous prime is 201010121111. The next prime is 201010121129. The reversal of 201010121121 is 121121010102.

It is not a de Polignac number, because 201010121121 - 2¹³ = 201010112929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201010121097 and 201010121106.

It is not an unprimeable number, because it can be changed into a prime (201010121129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43003680 + ... + 43008353.

It is an arithmetic number, because the mean of its divisors is an integer number (18062527140).

Almost surely, 2^201010121121 is an apocalyptic number.

It is an amenable number.

201010121121 is a deficient number, since it is larger than the sum of its proper divisors (87990313119).

201010121121 is a wasteful number, since it uses less digits than its factorization.

201010121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86012096.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201010121121 its reverse (121121010102), we get a palindrome (322131131223).

The spelling of 201010121121 in words is "two hundred one billion, ten million, one hundred twenty-one thousand, one hundred twenty-one".