221122112102001 has 12 divisors (see below), whose sum is σ = 348434843312400. Its totient is φ = 134013401273880.

The previous prime is 221122112101993. The next prime is 221122112102027. The reversal of 221122112102001 is 100201211221122.

221122112102001 is a `hidden beast` number, since 2 + 211 + 221 + 1 + 210 + 20 + 0 + 1 = 666.

It is not a de Polignac number, because 221122112102001 - 2³ = 221122112101993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221122112102051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1116778343851 + ... + 1116778344048.

It is an arithmetic number, because the mean of its divisors is an integer number (29036236942700).

Almost surely, 2^{221122112102001} is an apocalyptic number.

It is an amenable number.

221122112102001 is a deficient number, since it is larger than the sum of its proper divisors (127312731210399).

221122112102001 is a wasteful number, since it uses less digits than its factorization.

221122112102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233556687916 (or 2233556687913 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221122112102001 its reverse (100201211221122), we get a palindrome (321323323323123).

The spelling of 221122112102001 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred two thousand, one".