22313123220 has 48 divisors (see below), whose sum is σ = 66151850688. Its totient is φ = 5600156160.

The previous prime is 22313123213. The next prime is 22313123227. The reversal of 22313123220 is 2232131322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22313123213) and next prime (22313123227).

It is a super-3 number, since 3×22313123220³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313123227) 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, 10936786 + ... + 10938825.

It is an arithmetic number, because the mean of its divisors is an integer number (1378163556).

Almost surely, 2^22313123220 is an apocalyptic number.

22313123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22313123220 is an abundant number, since it is smaller than the sum of its proper divisors (43838727468).

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

22313123220 is a wasteful number, since it uses less digits than its factorization.

22313123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875640 (or 21875638 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22313123220 its reverse (2232131322), we get a palindrome (24545254542).

The spelling of 22313123220 in words is "twenty-two billion, three hundred thirteen million, one hundred twenty-three thousand, two hundred twenty".