221220201001112 has 32 divisors (see below), whose sum is σ = 438751202726880. Its totient is φ = 104351637392640.

The previous prime is 221220201001081. The next prime is 221220201001223. The reversal of 221220201001112 is 211100102022122.

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, 8234806439 + ... + 8234833302.

It is an arithmetic number, because the mean of its divisors is an integer number (13710975085215).

Almost surely, 2^{221220201001112} is an apocalyptic number.

It is an amenable number.

221220201001112 is a deficient number, since it is larger than the sum of its proper divisors (217531001725768).

221220201001112 is a wasteful number, since it uses less digits than its factorization.

221220201001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16469639843 (or 16469639839 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221220201001112 its reverse (211100102022122), we get a palindrome (432320303023234).

The spelling of 221220201001112 in words is "two hundred twenty-one trillion, two hundred twenty billion, two hundred one million, one thousand, one hundred twelve".