210211111020001 has 24 divisors (see below), whose sum is σ = 261278908975680. Its totient is φ = 165594586787136.

The previous prime is 210211111019983. The next prime is 210211111020017. The reversal of 210211111020001 is 100020111112012.

It is a happy number.

It is not a de Polignac number, because 210211111020001 - 2⁵ = 210211111019969 is a prime.

It is a super-2 number, since 2×210211111020001² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210211111020101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387705615 + ... + 388247428.

It is an arithmetic number, because the mean of its divisors is an integer number (10886621207320).

Almost surely, 2^{210211111020001} is an apocalyptic number.

It is an amenable number.

210211111020001 is a deficient number, since it is larger than the sum of its proper divisors (51067797955679).

210211111020001 is a wasteful number, since it uses less digits than its factorization.

210211111020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775953305 (or 775953292 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210211111020001 its reverse (100020111112012), we get a palindrome (310231222132013).

The spelling of 210211111020001 in words is "two hundred ten trillion, two hundred eleven billion, one hundred eleven million, twenty thousand, one".