223111242420 has 96 divisors (see below), whose sum is σ = 698125550976. Its totient is φ = 52768358400.

The previous prime is 223111242407. The next prime is 223111242457. The reversal of 223111242420 is 24242111322.

It is a super-3 number, since 3×223111242420³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4095469 + ... + 4149588.

It is an arithmetic number, because the mean of its divisors is an integer number (7272141156).

Almost surely, 2^223111242420 is an apocalyptic number.

223111242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223111242420 is an abundant number, since it is smaller than the sum of its proper divisors (475014308556).

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

223111242420 is a wasteful number, since it uses less digits than its factorization.

223111242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8245121 (or 8245119 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 223111242420 its reverse (24242111322), we get a palindrome (247353353742).

The spelling of 223111242420 in words is "two hundred twenty-three billion, one hundred eleven million, two hundred forty-two thousand, four hundred twenty".