201100221122012 has 24 divisors (see below), whose sum is σ = 353595025432320. Its totient is φ = 100073075704560.

The previous prime is 201100221121963. The next prime is 201100221122039. The reversal of 201100221122012 is 210221122001102.

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, 219021539 + ... + 219937797.

It is an arithmetic number, because the mean of its divisors is an integer number (14733126059680).

Almost surely, 2^{201100221122012} is an apocalyptic number.

It is an amenable number.

201100221122012 is a deficient number, since it is larger than the sum of its proper divisors (152494804310308).

201100221122012 is a wasteful number, since it uses less digits than its factorization.

201100221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176521 (or 1176519 counting only the distinct ones).

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

Adding to 201100221122012 its reverse (210221122001102), we get a palindrome (411321343123114).

The spelling of 201100221122012 in words is "two hundred one trillion, one hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".