223212120002001 has 24 divisors (see below), whose sum is σ = 347222793129576. Its totient is φ = 137359746017280.

The previous prime is 223212120001963. The next prime is 223212120002029. The reversal of 223212120002001 is 100200021212322.

223212120002001 is a `hidden beast` number, since 22 + 321 + 2 + 120 + 0 + 0 + 200 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 169394803776 + 223042725198225 = 411576^2 + 14934615^2 .

It is not a de Polignac number, because 223212120002001 - 2¹³ = 223212119993809 is a prime.

It is a super-3 number, since 3×223212120002001³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223212120082001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425680 + ... + 21133041.

It is an arithmetic number, because the mean of its divisors is an integer number (14467616380399).

Almost surely, 2^{223212120002001} is an apocalyptic number.

It is an amenable number.

223212120002001 is a deficient number, since it is larger than the sum of its proper divisors (124010673127575).

223212120002001 is a wasteful number, since it uses less digits than its factorization.

223212120002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21647233 (or 21647230 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 223212120002001 its reverse (100200021212322), we get a palindrome (323412141214323).

The spelling of 223212120002001 in words is "two hundred twenty-three trillion, two hundred twelve billion, one hundred twenty million, two thousand, one".