210211102134 has 96 divisors (see below), whose sum is σ = 501997111200. Its totient is φ = 63045158400.

The previous prime is 210211102111. The next prime is 210211102139. The reversal of 210211102134 is 431201112012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211102139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8277384 + ... + 8302740.

It is an arithmetic number, because the mean of its divisors is an integer number (5229136575).

Almost surely, 2^210211102134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210211102134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250998555600).

210211102134 is an abundant number, since it is smaller than the sum of its proper divisors (291786009066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210211102134 is a wasteful number, since it uses less digits than its factorization.

210211102134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25806 (or 25803 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 210211102134 its reverse (431201112012), we get a palindrome (641412214146).

The spelling of 210211102134 in words is "two hundred ten billion, two hundred eleven million, one hundred two thousand, one hundred thirty-four".