2212320020 has 24 divisors (see below), whose sum is σ = 4650345000. Its totient is φ = 884076032.

The previous prime is 2212319999. The next prime is 2212320023. The reversal of 2212320020 is 200232122.

It can be written as a sum of positive squares in 4 ways, for example, as 520478596 + 1691841424 = 22814^2 + 41132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212319977 and 2212320004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212320023) 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, 31745 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (193764375).

Almost surely, 2^2212320020 is an apocalyptic number.

2212320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212320020 is an abundant number, since it is smaller than the sum of its proper divisors (2438024980).

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

2212320020 is a wasteful number, since it uses less digits than its factorization.

2212320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106507 (or 106505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2212320020 is about 47035.3061008430. The cubic root of 2212320020 is about 1303.0147036867.

Adding to 2212320020 its reverse (200232122), we get a palindrome (2412552142).

The spelling of 2212320020 in words is "two billion, two hundred twelve million, three hundred twenty thousand, twenty".