224233155220 has 24 divisors (see below), whose sum is σ = 481840549344. Its totient is φ = 87607371936.

The previous prime is 224233155173. The next prime is 224233155221. The reversal of 224233155220 is 22551332422.

It is a super-2 number, since 2×224233155220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224233155221) 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, 130367254 + ... + 130368973.

It is an arithmetic number, because the mean of its divisors is an integer number (20076689556).

Almost surely, 2^224233155220 is an apocalyptic number.

224233155220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224233155220 is an abundant number, since it is smaller than the sum of its proper divisors (257607394124).

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

224233155220 is a wasteful number, since it uses less digits than its factorization.

224233155220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260736279 (or 260736277 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 224233155220 its reverse (22551332422), we get a palindrome (246784487642).

The spelling of 224233155220 in words is "two hundred twenty-four billion, two hundred thirty-three million, one hundred fifty-five thousand, two hundred twenty".