201010120212121 has 64 divisors (see below), whose sum is σ = 230938940353536. Its totient is φ = 173376681984000.

The previous prime is 201010120212119. The next prime is 201010120212157. The reversal of 201010120212121 is 121212021010102.

It is not a de Polignac number, because 201010120212121 - 2¹ = 201010120212119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201010120212095 and 201010120212104.

It is not an unprimeable number, because it can be changed into a prime (201010120212221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 522029761 + ... + 522414673.

It is an arithmetic number, because the mean of its divisors is an integer number (3608420943024).

Almost surely, 2^{201010120212121} is an apocalyptic number.

It is an amenable number.

201010120212121 is a deficient number, since it is larger than the sum of its proper divisors (29928820141415).

201010120212121 is a wasteful number, since it uses less digits than its factorization.

201010120212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385282.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201010120212121 its reverse (121212021010102), we get a palindrome (322222141222223).

It can be divided in two parts, 2010101 and 20212121, that added together give a palindrome (22222222).

The spelling of 201010120212121 in words is "two hundred one trillion, ten billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".