221010010112 has 28 divisors (see below), whose sum is σ = 441993057846. Its totient is φ = 110505000960.

The previous prime is 221010010097. The next prime is 221010010121. The reversal of 221010010112 is 211010010122.

It can be written as a sum of positive squares in only one way, i.e., 192699928576 + 28310081536 = 438976^2 + 168256^2 .

It is a super-3 number, since 3×221010010112³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221010010093 and 221010010102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13481189 + ... + 13497572.

Almost surely, 2^221010010112 is an apocalyptic number.

It is an amenable number.

221010010112 is a deficient number, since it is larger than the sum of its proper divisors (220983047734).

221010010112 is an frugal number, since it uses more digits than its factorization.

221010010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26978787 (or 26978763 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221010010112 its reverse (211010010122), we get a palindrome (432020020234).

It can be divided in two parts, 221010010 and 112, that added together give a palindrome (221010122).

The spelling of 221010010112 in words is "two hundred twenty-one billion, ten million, ten thousand, one hundred twelve".