2212122120020 has 48 divisors (see below), whose sum is σ = 4779378020928. Its totient is φ = 859701807360.

The previous prime is 2212122119993. The next prime is 2212122120029. The reversal of 2212122120020 is 200212212122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212122120029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11209286 + ... + 11404925.

It is an arithmetic number, because the mean of its divisors is an integer number (99570375436).

Almost surely, 2^{2212122120020} is an apocalyptic number.

2212122120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212122120020 is an abundant number, since it is smaller than the sum of its proper divisors (2567255900908).

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

2212122120020 is a wasteful number, since it uses less digits than its factorization.

2212122120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22614360 (or 22614358 counting only the distinct ones).

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

Adding to 2212122120020 its reverse (200212212122), we get a palindrome (2412334332142).

The spelling of 2212122120020 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, twenty".