1223202023212 has 48 divisors (see below), whose sum is σ = 2311878868992. Its totient is φ = 562935919680.

The previous prime is 1223202023209. The next prime is 1223202023231. The reversal of 1223202023212 is 2123202023221.

It is a super-3 number, since 3×1223202023212³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 137635033 + ... + 137643919.

It is an arithmetic number, because the mean of its divisors is an integer number (48164143104).

Almost surely, 2^{1223202023212} is an apocalyptic number.

It is an amenable number.

1223202023212 is a deficient number, since it is larger than the sum of its proper divisors (1088676845780).

1223202023212 is a wasteful number, since it uses less digits than its factorization.

1223202023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16198 (or 16196 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1223202023212 its reverse (2123202023221), we get a palindrome (3346404046433).

Subtracting 1223202023212 from its reverse (2123202023221), we obtain a palindrome (900000000009).

The spelling of 1223202023212 in words is "one trillion, two hundred twenty-three billion, two hundred two million, twenty-three thousand, two hundred twelve".