221010021112 has 32 divisors (see below), whose sum is σ = 418524790320. Its totient is φ = 109404686080.

The previous prime is 221010021107. The next prime is 221010021181. The reversal of 221010021112 is 211120010122.

It is a junction number, because it is equal to n+sod(n) for n = 221010021092 and 221010021101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322412 + ... + 1480132.

Almost surely, 2^221010021112 is an apocalyptic number.

It is an amenable number.

221010021112 is a deficient number, since it is larger than the sum of its proper divisors (197514769208).

221010021112 is a wasteful number, since it uses less digits than its factorization.

221010021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159471 (or 159467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221010021112 its reverse (211120010122), we get a palindrome (432130031234).

The spelling of 221010021112 in words is "two hundred twenty-one billion, ten million, twenty-one thousand, one hundred twelve".