2213122620 has 48 divisors (see below), whose sum is σ = 6203288448. Its totient is φ = 589542720.

The previous prime is 2213122589. The next prime is 2213122621. The reversal of 2213122620 is 262213122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213122621) 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, 39267 + ... + 77253.

It is an arithmetic number, because the mean of its divisors is an integer number (129235176).

Almost surely, 2^2213122620 is an apocalyptic number.

2213122620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213122620 is an abundant number, since it is smaller than the sum of its proper divisors (3990165828).

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

2213122620 is a wasteful number, since it uses less digits than its factorization.

2213122620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38970 (or 38968 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2213122620 is about 47043.8372159415. The cubic root of 2213122620 is about 1303.1722567155.

Adding to 2213122620 its reverse (262213122), we get a palindrome (2475335742).

The spelling of 2213122620 in words is "two billion, two hundred thirteen million, one hundred twenty-two thousand, six hundred twenty".