2122202021220 has 96 divisors (see below), whose sum is σ = 6603461101440. Its totient is φ = 565830126720.

The previous prime is 2122202021207. The next prime is 2122202021273. The reversal of 2122202021220 is 221202022212.

2122202021220 is a `hidden beast` number, since 21 + 2 + 220 + 202 + 1 + 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 = 2122202021193 and 2122202021202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3103650 + ... + 3725190.

It is an arithmetic number, because the mean of its divisors is an integer number (68786053140).

Almost surely, 2^{2122202021220} is an apocalyptic number.

2122202021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122202021220 is an abundant number, since it is smaller than the sum of its proper divisors (4481259080220).

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

2122202021220 is a wasteful number, since it uses less digits than its factorization.

2122202021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627882 (or 627874 counting only the distinct ones).

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

Adding to 2122202021220 its reverse (221202022212), we get a palindrome (2343404043432).

The spelling of 2122202021220 in words is "two trillion, one hundred twenty-two billion, two hundred two million, twenty-one thousand, two hundred twenty".