210011120220 has 192 divisors, whose sum is σ = 657908697600. Its totient is φ = 49614028800.

The previous prime is 210011120201. The next prime is 210011120261. The reversal of 210011120220 is 22021110012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210011120196 and 210011120205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12734380 + ... + 12750860.

It is an arithmetic number, because the mean of its divisors is an integer number (3426607800).

Almost surely, 2^210011120220 is an apocalyptic number.

210011120220 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 210011120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328954348800).

210011120220 is an abundant number, since it is smaller than the sum of its proper divisors (447897577380).

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

210011120220 is a wasteful number, since it uses less digits than its factorization.

210011120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16996 (or 16994 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210011120220 its reverse (22021110012), we get a palindrome (232032230232).

The spelling of 210011120220 in words is "two hundred ten billion, eleven million, one hundred twenty thousand, two hundred twenty".