2210211122220 has 72 divisors (see below), whose sum is σ = 6711387110064. Its totient is φ = 588767211648.

The previous prime is 2210211122219. The next prime is 2210211122261. The reversal of 2210211122220 is 222211120122.

It is a happy number.

2210211122220 is a `hidden beast` number, since 2 + 210 + 211 + 1 + 22 + 220 = 666.

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 = 2210211122193 and 2210211122202.

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 23 ways as a sum of consecutive naturals, for example, 6312619 + ... + 6653538.

It is an arithmetic number, because the mean of its divisors is an integer number (93213709862).

Almost surely, 2^{2210211122220} is an apocalyptic number.

2210211122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210211122220 is an abundant number, since it is smaller than the sum of its proper divisors (4501175987844).

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

2210211122220 is a wasteful number, since it uses less digits than its factorization.

2210211122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12967119 (or 12967114 counting only the distinct ones).

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

Adding to 2210211122220 its reverse (222211120122), we get a palindrome (2432422242342).

The spelling of 2210211122220 in words is "two trillion, two hundred ten billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twenty".