201010110011021 has 4 divisors (see below), whose sum is σ = 201010767704544. Its totient is φ = 201009452317500.

The previous prime is 201010110010951. The next prime is 201010110011027. The reversal of 201010110011021 is 120110011010102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201010110011021 - 2¹⁴ = 201010109994637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201010110010993 and 201010110011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010110011027) 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, 328388105 + ... + 328999646.

It is an arithmetic number, because the mean of its divisors is an integer number (50252691926136).

Almost surely, 2^{201010110011021} is an apocalyptic number.

It is an amenable number.

201010110011021 is a deficient number, since it is larger than the sum of its proper divisors (657693523).

201010110011021 is an equidigital number, since it uses as much as digits as its factorization.

201010110011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657693522.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201010110011021 its reverse (120110011010102), we get a palindrome (321120121021123).

The spelling of 201010110011021 in words is "two hundred one trillion, ten billion, one hundred ten million, eleven thousand, twenty-one".