223022012004 has 108 divisors (see below), whose sum is σ = 621449158512. Its totient is φ = 67387209120.

The previous prime is 223022011973. The next prime is 223022012009. The reversal of 223022012004 is 400210220322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (223022012009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1437759 + ... + 1585305.

Almost surely, 2^223022012004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223022012004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310724579256).

223022012004 is an abundant number, since it is smaller than the sum of its proper divisors (398427146508).

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

223022012004 is a wasteful number, since it uses less digits than its factorization.

223022012004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147926 (or 147910 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 223022012004 its reverse (400210220322), we get a palindrome (623232232326).

The spelling of 223022012004 in words is "two hundred twenty-three billion, twenty-two million, twelve thousand, four".