12021202202220 has 72 divisors (see below), whose sum is σ = 36503229881664. Its totient is φ = 3202232686848.

The previous prime is 12021202202213. The next prime is 12021202202227. The reversal of 12021202202220 is 2220220212021.

12021202202220 is a `hidden beast` number, since 1 + 20 + 21 + 202 + 202 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (12021202202213) and next prime (12021202202227).

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 = 12021202202193 and 12021202202202.

It is not an unprimeable number, because it can be changed into a prime (12021202202227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35468724 + ... + 35806043.

It is an arithmetic number, because the mean of its divisors is an integer number (506989303912).

Almost surely, 2^{12021202202220} is an apocalyptic number.

12021202202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021202202220 is an abundant number, since it is smaller than the sum of its proper divisors (24482027679444).

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

12021202202220 is a wasteful number, since it uses less digits than its factorization.

12021202202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71275719 (or 71275714 counting only the distinct ones).

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

Adding to 12021202202220 its reverse (2220220212021), we get a palindrome (14241422414241).

The spelling of 12021202202220 in words is "twelve trillion, twenty-one billion, two hundred two million, two hundred two thousand, two hundred twenty".