2220121002222 has 20 divisors (see below), whose sum is σ = 4974715579416. Its totient is φ = 740040334020.

The previous prime is 2220121002137. The next prime is 2220121002317. The reversal of 2220121002222 is 2222001210222.

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 = 2220121002195 and 2220121002204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6852225154 + ... + 6852225477.

Almost surely, 2^{2220121002222} is an apocalyptic number.

2220121002222 is an abundant number, since it is smaller than the sum of its proper divisors (2754594577194).

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

2220121002222 is a wasteful number, since it uses less digits than its factorization.

2220121002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13704450645 (or 13704450636 counting only the distinct ones).

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

Adding to 2220121002222 its reverse (2222001210222), we get a palindrome (4442122212444).

The spelling of 2220121002222 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, two thousand, two hundred twenty-two".