221220110001112 has 32 divisors (see below), whose sum is σ = 417195313778880. Its totient is φ = 109968056951040.

The previous prime is 221220110001109. The next prime is 221220110001139. The reversal of 221220110001112 is 211100011022122.

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, 56543812 + ... + 60329452.

It is an arithmetic number, because the mean of its divisors is an integer number (13037353555590).

Almost surely, 2^{221220110001112} is an apocalyptic number.

It is an amenable number.

221220110001112 is a deficient number, since it is larger than the sum of its proper divisors (195975203777768).

221220110001112 is a wasteful number, since it uses less digits than its factorization.

221220110001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828043 (or 3828039 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221220110001112 its reverse (211100011022122), we get a palindrome (432320121023234).

The spelling of 221220110001112 in words is "two hundred twenty-one trillion, two hundred twenty billion, one hundred ten million, one thousand, one hundred twelve".