2222021112210 has 320 divisors, whose sum is σ = 6443010478080. Its totient is φ = 547773166080.

The previous prime is 2222021112209. The next prime is 2222021112211. The reversal of 2222021112210 is 122111202222.

It is a happy number.

2222021112210 is a `hidden beast` number, since 22 + 220 + 211 + 1 + 2 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (2222021112209) and next prime (2222021112211).

It is a super-2 number, since 2×2222021112210² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2222021112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 119217012 + ... + 119235648.

It is an arithmetic number, because the mean of its divisors is an integer number (20134407744).

Almost surely, 2^{2222021112210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222021112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3221505239040).

2222021112210 is an abundant number, since it is smaller than the sum of its proper divisors (4220989365870).

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

2222021112210 is a wasteful number, since it uses less digits than its factorization.

2222021112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18863 (or 18854 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222021112210 its reverse (122111202222), we get a palindrome (2344132314432).

The spelling of 2222021112210 in words is "two trillion, two hundred twenty-two billion, twenty-one million, one hundred twelve thousand, two hundred ten".