221100102112 has 48 divisors (see below), whose sum is σ = 442058202432. Its totient is φ = 108843171840.

The previous prime is 221100102071. The next prime is 221100102121. The reversal of 221100102112 is 211201001122.

It is a junction number, because it is equal to n+sod(n) for n = 221100102092 and 221100102101.

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, 414537 + ... + 783607.

It is an arithmetic number, because the mean of its divisors is an integer number (9209545884).

Almost surely, 2^221100102112 is an apocalyptic number.

It is an amenable number.

221100102112 is a deficient number, since it is larger than the sum of its proper divisors (220958100320).

221100102112 is a wasteful number, since it uses less digits than its factorization.

221100102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369371 (or 369363 counting only the distinct ones).

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

Adding to 221100102112 its reverse (211201001122), we get a palindrome (432301103234).

The spelling of 221100102112 in words is "two hundred twenty-one billion, one hundred million, one hundred two thousand, one hundred twelve".