2213120223220 has 12 divisors (see below), whose sum is σ = 4647552468804. Its totient is φ = 885248089280.

The previous prime is 2213120223211. The next prime is 2213120223229. The reversal of 2213120223220 is 223220213122.

It is an interprime number because it is at equal distance from previous prime (2213120223211) and next prime (2213120223229).

It can be written as a sum of positive squares in 2 ways, for example, as 1051601026576 + 1161519196644 = 1025476^2 + 1077738^2 .

It is a super-2 number, since 2×2213120223220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2213120223191 and 2213120223200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213120223229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55328005561 + ... + 55328005600.

It is an arithmetic number, because the mean of its divisors is an integer number (387296039067).

Almost surely, 2^{2213120223220} is an apocalyptic number.

2213120223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213120223220 is an abundant number, since it is smaller than the sum of its proper divisors (2434432245584).

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

2213120223220 is a wasteful number, since it uses less digits than its factorization.

2213120223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110656011170 (or 110656011168 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2213120223220 its reverse (223220213122), we get a palindrome (2436340436342).

The spelling of 2213120223220 in words is "two trillion, two hundred thirteen billion, one hundred twenty million, two hundred twenty-three thousand, two hundred twenty".