210211221120 has 256 divisors, whose sum is σ = 705927312000. Its totient is φ = 53059829760.

The previous prime is 210211221097. The next prime is 210211221151. The reversal of 210211221120 is 21122112012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210211221120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65261110 + ... + 65264330.

Almost surely, 2^210211221120 is an apocalyptic number.

210211221120 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 210211221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352963656000).

210211221120 is an abundant number, since it is smaller than the sum of its proper divisors (495716090880).

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

210211221120 is a wasteful number, since it uses less digits than its factorization.

210211221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210211221120 its reverse (21122112012), we get a palindrome (231333333132).

The spelling of 210211221120 in words is "two hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty".