223021332012 has 12 divisors (see below), whose sum is σ = 520383108056. Its totient is φ = 74340444000.

The previous prime is 223021331993. The next prime is 223021332031. The reversal of 223021332012 is 210233120322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223021331993) and next prime (223021332031).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 223021332012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9292555489 + ... + 9292555512.

Almost surely, 2^223021332012 is an apocalyptic number.

It is an amenable number.

223021332012 is an abundant number, since it is smaller than the sum of its proper divisors (297361776044).

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

223021332012 is a wasteful number, since it uses less digits than its factorization.

223021332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18585111008 (or 18585111006 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 223021332012 its reverse (210233120322), we get a palindrome (433254452334).

The spelling of 223021332012 in words is "two hundred twenty-three billion, twenty-one million, three hundred thirty-two thousand, twelve".