2120221222 has 64 divisors (see below), whose sum is σ = 3788467200. Its totient is φ = 871288704.

The previous prime is 2120221199. The next prime is 2120221261. The reversal of 2120221222 is 2221220212.

It is a super-3 number, since 3×2120221222³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120221196 and 2120221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10654279 + ... + 10654477.

It is an arithmetic number, because the mean of its divisors is an integer number (59194800).

Almost surely, 2^2120221222 is an apocalyptic number.

2120221222 is a deficient number, since it is larger than the sum of its proper divisors (1668245978).

2120221222 is a wasteful number, since it uses less digits than its factorization.

2120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2120221222 is about 46045.8599876254. The cubic root of 2120221222 is about 1284.6763399295.

Adding to 2120221222 its reverse (2221220212), we get a palindrome (4341441434).

It can be divided in two parts, 21202 and 21222, that added together give a palindrome (42424).

The spelling of 2120221222 in words is "two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".