201021010220111 has 8 divisors (see below), whose sum is σ = 204320357486064. Its totient is φ = 197721789433920.

The previous prime is 201021010220083. The next prime is 201021010220113. The reversal of 201021010220111 is 111022010120102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201021010220111 - 2⁴⁶ = 130652266042447 is a prime.

It is a super-2 number, since 2×201021010220111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021010220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28412501 + ... + 34775166.

It is an arithmetic number, because the mean of its divisors is an integer number (25540044685758).

Almost surely, 2^{201021010220111} is an apocalyptic number.

201021010220111 is a deficient number, since it is larger than the sum of its proper divisors (3299347265953).

201021010220111 is an equidigital number, since it uses as much as digits as its factorization.

201021010220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63239881.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201021010220111 its reverse (111022010120102), we get a palindrome (312043020340213).

The spelling of 201021010220111 in words is "two hundred one trillion, twenty-one billion, ten million, two hundred twenty thousand, one hundred eleven".