223212311002 has 4 divisors (see below), whose sum is σ = 334818466506. Its totient is φ = 111606155500.

The previous prime is 223212310967. The next prime is 223212311017. The reversal of 223212311002 is 200113212322.

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., 136588637241 + 86623673761 = 369579^2 + 294319^2 .

It is a super-3 number, since 3×223212311002³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55803077749 + ... + 55803077752.

Almost surely, 2^223212311002 is an apocalyptic number.

223212311002 is a deficient number, since it is larger than the sum of its proper divisors (111606155504).

223212311002 is a wasteful number, since it uses less digits than its factorization.

223212311002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111606155503.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 223212311002 its reverse (200113212322), we get a palindrome (423325523324).

The spelling of 223212311002 in words is "two hundred twenty-three billion, two hundred twelve million, three hundred eleven thousand, two".