2122021202220 has 72 divisors (see below), whose sum is σ = 6675197574864. Its totient is φ = 565872319296.

The previous prime is 2122021202141. The next prime is 2122021202239. The reversal of 2122021202220 is 222021202212.

2122021202220 is a `hidden beast` number, since 2 + 1 + 220 + 21 + 202 + 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 = 2122021202193 and 2122021202202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218310079 + ... + 218319798.

Almost surely, 2^{2122021202220} is an apocalyptic number.

2122021202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122021202220 is an abundant number, since it is smaller than the sum of its proper divisors (4553176372644).

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

2122021202220 is a wasteful number, since it uses less digits than its factorization.

2122021202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436629901 (or 436629887 counting only the distinct ones).

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

Adding to 2122021202220 its reverse (222021202212), we get a palindrome (2344042404432).

The spelling of 2122021202220 in words is "two trillion, one hundred twenty-two billion, twenty-one million, two hundred two thousand, two hundred twenty".