210211202202140 has 96 divisors (see below), whose sum is σ = 470558840923584. Its totient is φ = 78607076556800.

The previous prime is 210211202202139. The next prime is 210211202202143. The reversal of 210211202202140 is 41202202112012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211202202143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27437615 + ... + 34252665.

It is an arithmetic number, because the mean of its divisors is an integer number (4901654592954).

Almost surely, 2^{210211202202140} is an apocalyptic number.

210211202202140 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 210211202202140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235279420461792).

210211202202140 is an abundant number, since it is smaller than the sum of its proper divisors (260347638721444).

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

210211202202140 is a wasteful number, since it uses less digits than its factorization.

210211202202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815687 (or 6815685 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210211202202140 its reverse (41202202112012), we get a palindrome (251413404314152).

The spelling of 210211202202140 in words is "two hundred ten trillion, two hundred eleven billion, two hundred two million, two hundred two thousand, one hundred forty".