224121020 has 24 divisors (see below), whose sum is σ = 475318368. Its totient is φ = 88760000.

The previous prime is 224120987. The next prime is 224121049. The reversal of 224121020 is 20121422.

It is a junction number, because it is equal to n+sod(n) for n = 224120986 and 224121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53456 + ... + 57495.

It is an arithmetic number, because the mean of its divisors is an integer number (19804932).

Almost surely, 2^224121020 is an apocalyptic number.

224121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224121020 is an abundant number, since it is smaller than the sum of its proper divisors (251197348).

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

224121020 is a wasteful number, since it uses less digits than its factorization.

224121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111061 (or 111059 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 224121020 is about 14970.6719956053. The cubic root of 224121020 is about 607.4271461122.

Adding to 224121020 its reverse (20121422), we get a palindrome (244242442).

It can be divided in two parts, 22412 and 1020, that added together give a palindrome (23432).

The spelling of 224121020 in words is "two hundred twenty-four million, one hundred twenty-one thousand, twenty".