2210111222220 has 288 divisors, whose sum is σ = 7562688456960. Its totient is φ = 517827847680.

The previous prime is 2210111222203. The next prime is 2210111222257. The reversal of 2210111222220 is 222221110122.

It is a happy number.

2210111222220 is a `hidden beast` number, since 2 + 210 + 1 + 11 + 222 + 220 = 666.

It is a super-2 number, since 2×2210111222220² (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 a junction number, because it is equal to n+sod(n) for n = 2210111222193 and 2210111222202.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6873811 + ... + 7188149.

It is an arithmetic number, because the mean of its divisors is an integer number (26259334920).

Almost surely, 2^{2210111222220} is an apocalyptic number.

2210111222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2210111222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3781344228480).

2210111222220 is an abundant number, since it is smaller than the sum of its proper divisors (5352577234740).

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

2210111222220 is a wasteful number, since it uses less digits than its factorization.

2210111222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314485 (or 314480 counting only the distinct ones).

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

Adding to 2210111222220 its reverse (222221110122), we get a palindrome (2432332332342).

The spelling of 2210111222220 in words is "two trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-two thousand, two hundred twenty".