22313224421 has 12 divisors (see below), whose sum is σ = 23766637092. Its totient is φ = 20944278528.

The previous prime is 22313224411. The next prime is 22313224447. The reversal of 22313224421 is 12442231322.

It can be written as a sum of positive squares in 6 ways, for example, as 1608892321 + 20704332100 = 40111^2 + 143890^2 .

It is not a de Polignac number, because 22313224421 - 2¹⁰ = 22313223397 is a prime.

It is a super-3 number, since 3×22313224421³ (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 (22313224411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4301 + ... + 211293.

It is an arithmetic number, because the mean of its divisors is an integer number (1980553091).

Almost surely, 2^22313224421 is an apocalyptic number.

It is an amenable number.

22313224421 is a deficient number, since it is larger than the sum of its proper divisors (1453412671).

22313224421 is a wasteful number, since it uses less digits than its factorization.

22313224421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207400 (or 207383 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 22313224421 its reverse (12442231322), we get a palindrome (34755455743).

The spelling of 22313224421 in words is "twenty-two billion, three hundred thirteen million, two hundred twenty-four thousand, four hundred twenty-one".