210211003420 has 72 divisors (see below), whose sum is σ = 487342749600. Its totient is φ = 76106363520.

The previous prime is 210211003393. The next prime is 210211003423. The reversal of 210211003420 is 24300112012.

It is a junction number, because it is equal to n+sod(n) for n = 210211003394 and 210211003403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211003423) 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, 364521 + ... + 743839.

It is an arithmetic number, because the mean of its divisors is an integer number (6768649300).

Almost surely, 2^210211003420 is an apocalyptic number.

210211003420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210211003420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243671374800).

210211003420 is an abundant number, since it is smaller than the sum of its proper divisors (277131746180).

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

210211003420 is a wasteful number, since it uses less digits than its factorization.

210211003420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379579 (or 379566 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210211003420 its reverse (24300112012), we get a palindrome (234511115432).

The spelling of 210211003420 in words is "two hundred ten billion, two hundred eleven million, three thousand, four hundred twenty".