12210112101220 has 96 divisors (see below), whose sum is σ = 28174504046976. Its totient is φ = 4408031846400.

The previous prime is 12210112101199. The next prime is 12210112101263. The reversal of 12210112101220 is 2210121101221.

It is a junction number, because it is equal to n+sod(n) for n = 12210112101194 and 12210112101203.

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, 20555022 + ... + 21140698.

It is an arithmetic number, because the mean of its divisors is an integer number (293484417156).

Almost surely, 2^{12210112101220} is an apocalyptic number.

12210112101220 is a gapful number since it is divisible by the number (10) 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 12210112101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14087252023488).

12210112101220 is an abundant number, since it is smaller than the sum of its proper divisors (15964391945756).

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

12210112101220 is a wasteful number, since it uses less digits than its factorization.

12210112101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586381 (or 586379 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12210112101220 its reverse (2210121101221), we get a palindrome (14420233202441).

Subtracting from 12210112101220 its reverse (2210121101221), we obtain a palindrome (9999990999999).

The spelling of 12210112101220 in words is "twelve trillion, two hundred ten billion, one hundred twelve million, one hundred one thousand, two hundred twenty".