2122220211020 has 192 divisors, whose sum is σ = 5852913991680. Its totient is φ = 627580680192.

The previous prime is 2122220210959. The next prime is 2122220211061. The reversal of 2122220211020 is 201120222212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122220211020.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2103989 + ... + 2944691.

It is an arithmetic number, because the mean of its divisors is an integer number (30483927040).

Almost surely, 2^{2122220211020} is an apocalyptic number.

2122220211020 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 2122220211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926456995840).

2122220211020 is an abundant number, since it is smaller than the sum of its proper divisors (3730693780660).

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

2122220211020 is a wasteful number, since it uses less digits than its factorization.

2122220211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840824 (or 840822 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2122220211020 its reverse (201120222212), we get a palindrome (2323340433232).

The spelling of 2122220211020 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, two hundred eleven thousand, twenty".