12202221020220 has 432 divisors, whose sum is σ = 48539977345440. Its totient is φ = 2535525780480.

The previous prime is 12202221020177. The next prime is 12202221020237. The reversal of 12202221020220 is 2202012220221.

12202221020220 is a `hidden beast` number, since 1 + 2 + 202 + 221 + 0 + 20 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12202221020193 and 12202221020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1296052 + ... + 5107268.

It is an arithmetic number, because the mean of its divisors is an integer number (112361058670).

Almost surely, 2^{12202221020220} is an apocalyptic number.

12202221020220 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 12202221020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24269988672720).

12202221020220 is an abundant number, since it is smaller than the sum of its proper divisors (36337756325220).

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

12202221020220 is a wasteful number, since it uses less digits than its factorization.

12202221020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811271 (or 3811245 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12202221020220 its reverse (2202012220221), we get a palindrome (14404233240441).

The spelling of 12202221020220 in words is "twelve trillion, two hundred two billion, two hundred twenty-one million, twenty thousand, two hundred twenty".