2222121220222 has 16 divisors (see below), whose sum is σ = 3419522577072. Its totient is φ = 1082360418880.

The previous prime is 2222121220219. The next prime is 2222121220223. The reversal of 2222121220222 is 2220221212222.

It is a junction number, because it is equal to n+sod(n) for n = 2222121220193 and 2222121220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222121220223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19958548 + ... + 20069575.

It is an arithmetic number, because the mean of its divisors is an integer number (213720161067).

Almost surely, 2^{2222121220222} is an apocalyptic number.

2222121220222 is a deficient number, since it is larger than the sum of its proper divisors (1197401356850).

2222121220222 is a wasteful number, since it uses less digits than its factorization.

2222121220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40028843.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2222121220222 its reverse (2220221212222), we get a palindrome (4442342432444).

The spelling of 2222121220222 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".