221301111112 has 8 divisors (see below), whose sum is σ = 414939583350. Its totient is φ = 110650555552.

The previous prime is 221301111103. The next prime is 221301111121. The reversal of 221301111112 is 211111103122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221301111103) and next prime (221301111121).

It can be written as a sum of positive squares in only one way, i.e., 155382602596 + 65918508516 = 394186^2 + 256746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13831319437 + ... + 13831319452.

Almost surely, 2^221301111112 is an apocalyptic number.

It is an amenable number.

221301111112 is a deficient number, since it is larger than the sum of its proper divisors (193638472238).

221301111112 is a wasteful number, since it uses less digits than its factorization.

221301111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27662638895 (or 27662638891 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 221301111112 its reverse (211111103122), we get a palindrome (432412214234).

The spelling of 221301111112 in words is "two hundred twenty-one billion, three hundred one million, one hundred eleven thousand, one hundred twelve".