223212021002 has 4 divisors (see below), whose sum is σ = 334818031506. Its totient is φ = 111606010500.

The previous prime is 223212020959. The next prime is 223212021007. The reversal of 223212021002 is 200120212322.

223212021002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 152897422441 + 70314598561 = 391021^2 + 265169^2 .

It is a super-3 number, since 3×223212021002³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223212021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55803005249 + ... + 55803005252.

Almost surely, 2^223212021002 is an apocalyptic number.

223212021002 is a deficient number, since it is larger than the sum of its proper divisors (111606010504).

223212021002 is a wasteful number, since it uses less digits than its factorization.

223212021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111606010503.

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

Adding to 223212021002 its reverse (200120212322), we get a palindrome (423332233324).

The spelling of 223212021002 in words is "two hundred twenty-three billion, two hundred twelve million, twenty-one thousand, two".