223240012100 has 144 divisors (see below), whose sum is σ = 570885211008. Its totient is φ = 74189506560.

The previous prime is 223240012091. The next prime is 223240012129. The reversal of 223240012100 is 1210042322.

It is a super-3 number, since 3×223240012100³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3043052 + ... + 3115548.

It is an arithmetic number, because the mean of its divisors is an integer number (3964480632).

Almost surely, 2^223240012100 is an apocalyptic number.

223240012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223240012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285442605504).

223240012100 is an abundant number, since it is smaller than the sum of its proper divisors (347645198908).

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

223240012100 is a wasteful number, since it uses less digits than its factorization.

223240012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72654 (or 72647 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 223240012100 its reverse (1210042322), we get a palindrome (224450054422).

The spelling of 223240012100 in words is "two hundred twenty-three billion, two hundred forty million, twelve thousand, one hundred".