1210021112223 has 64 divisors (see below), whose sum is σ = 2236215782400. Its totient is φ = 628229105280.

The previous prime is 1210021112213. The next prime is 1210021112239. The reversal of 1210021112223 is 3222111200121.

It is not a de Polignac number, because 1210021112223 - 2⁴ = 1210021112207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210021112196 and 1210021112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210021112203) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 3556665 + ... + 3881997.

It is an arithmetic number, because the mean of its divisors is an integer number (34940871600).

Almost surely, 2^{1210021112223} is an apocalyptic number.

1210021112223 is a deficient number, since it is larger than the sum of its proper divisors (1026194670177).

1210021112223 is a wasteful number, since it uses less digits than its factorization.

1210021112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327149 (or 327143 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1210021112223 its reverse (3222111200121), we get a palindrome (4432132312344).

The spelling of 1210021112223 in words is "one trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, two hundred twenty-three".