2122020111220 has 24 divisors (see below), whose sum is σ = 4459600422144. Its totient is φ = 848168389536.

The previous prime is 2122020111161. The next prime is 2122020111221. The reversal of 2122020111220 is 221110202212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2122020111194 and 2122020111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122020111221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39951232 + ... + 40004311.

It is an arithmetic number, because the mean of its divisors is an integer number (185816684256).

Almost surely, 2^{2122020111220} is an apocalyptic number.

2122020111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122020111220 is an abundant number, since it is smaller than the sum of its proper divisors (2337580310924).

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

2122020111220 is a wasteful number, since it uses less digits than its factorization.

2122020111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79956879 (or 79956877 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122020111220 its reverse (221110202212), we get a palindrome (2343130313432).

The spelling of 2122020111220 in words is "two trillion, one hundred twenty-two billion, twenty million, one hundred eleven thousand, two hundred twenty".