201012210021111 has 32 divisors (see below), whose sum is σ = 275331236438016. Its totient is φ = 130352542992000.

The previous prime is 201012210021017. The next prime is 201012210021137. The reversal of 201012210021111 is 111120012210102.

It is a happy number.

It is not a de Polignac number, because 201012210021111 - 2⁷ = 201012210020983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012210021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10479746941 + ... + 10479766121.

It is an arithmetic number, because the mean of its divisors is an integer number (8604101138688).

Almost surely, 2^{201012210021111} is an apocalyptic number.

201012210021111 is a deficient number, since it is larger than the sum of its proper divisors (74319026416905).

201012210021111 is a wasteful number, since it uses less digits than its factorization.

201012210021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38743.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201012210021111 its reverse (111120012210102), we get a palindrome (312132222231213).

The spelling of 201012210021111 in words is "two hundred one trillion, twelve billion, two hundred ten million, twenty-one thousand, one hundred eleven".