221012100122101 has 8 divisors (see below), whose sum is σ = 221718738096320. Its totient is φ = 220305465518112.

The previous prime is 221012100122059. The next prime is 221012100122117. The reversal of 221012100122101 is 101221001210122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221012100122101 - 2¹⁷ = 221012099991029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012100122701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244622770 + ... + 245524588.

It is an arithmetic number, because the mean of its divisors is an integer number (27714842262040).

Almost surely, 2^{221012100122101} is an apocalyptic number.

It is an amenable number.

221012100122101 is a deficient number, since it is larger than the sum of its proper divisors (706637974219).

221012100122101 is an equidigital number, since it uses as much as digits as its factorization.

221012100122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685115.

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

Adding to 221012100122101 its reverse (101221001210122), we get a palindrome (322233101332223).

The spelling of 221012100122101 in words is "two hundred twenty-one trillion, twelve billion, one hundred million, one hundred twenty-two thousand, one hundred one".