221200123023112 has 16 divisors (see below), whose sum is σ = 439147303060860. Its totient is φ = 104094175540224.

The previous prime is 221200123023097. The next prime is 221200123023137. The reversal of 221200123023112 is 211320321002122.

It can be written as a sum of positive squares in 2 ways, for example, as 220906569281476 + 293553741636 = 14862926^2 + 541806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813235746273 + ... + 813235746544.

Almost surely, 2^{221200123023112} is an apocalyptic number.

It is an amenable number.

221200123023112 is a deficient number, since it is larger than the sum of its proper divisors (217947180037748).

221200123023112 is a wasteful number, since it uses less digits than its factorization.

221200123023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626471492840 (or 1626471492836 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221200123023112 its reverse (211320321002122), we get a palindrome (432520444025234).

The spelling of 221200123023112 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twenty-three million, twenty-three thousand, one hundred twelve".