2220120021222 has 36 divisors (see below), whose sum is σ = 5109861029676. Its totient is φ = 696508240320.

The previous prime is 2220120021209. The next prime is 2220120021247. The reversal of 2220120021222 is 2221200210222.

2220120021222 is a `hidden beast` number, since 2 + 220 + 1 + 200 + 21 + 222 = 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 = 2220120021195 and 2220120021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 213385804 + ... + 213396207.

Almost surely, 2^{2220120021222} is an apocalyptic number.

2220120021222 is an abundant number, since it is smaller than the sum of its proper divisors (2889741008454).

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

2220120021222 is a wasteful number, since it uses less digits than its factorization.

2220120021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426782053 (or 426782033 counting only the distinct ones).

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

Adding to 2220120021222 its reverse (2221200210222), we get a palindrome (4441320231444).

The spelling of 2220120021222 in words is "two trillion, two hundred twenty billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".