220111002021210 has 256 divisors, whose sum is σ = 559206802391040. Its totient is φ = 55376364718080.

The previous prime is 220111002021191. The next prime is 220111002021217. The reversal of 220111002021210 is 12120200111022.

It is a super-2 number, since 2×220111002021210² (a number of 29 digits) contains 22 as substring.

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 220111002021210.

It is not an unprimeable number, because it can be changed into a prime (220111002021217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2319278619 + ... + 2319373521.

It is an arithmetic number, because the mean of its divisors is an integer number (2184401571840).

Almost surely, 2^{220111002021210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220111002021210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279603401195520).

220111002021210 is an abundant number, since it is smaller than the sum of its proper divisors (339095800369830).

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

220111002021210 is a wasteful number, since it uses less digits than its factorization.

220111002021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95413.

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

Adding to 220111002021210 its reverse (12120200111022), we get a palindrome (232231202132232).

The spelling of 220111002021210 in words is "two hundred twenty trillion, one hundred eleven billion, two million, twenty-one thousand, two hundred ten".