102100121221201 has 4 divisors (see below), whose sum is σ = 102100348446192. Its totient is φ = 102099893996212.

The previous prime is 102100121221139. The next prime is 102100121221211. The reversal of 102100121221201 is 102122121001201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102100121221201 - 2⁷ = 102100121221073 is a prime.

It is a super-4 number, since 4×102100121221201⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102100121221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112937155 + ... + 113837608.

It is an arithmetic number, because the mean of its divisors is an integer number (25525087111548).

Almost surely, 2^{102100121221201} is an apocalyptic number.

It is an amenable number.

102100121221201 is a deficient number, since it is larger than the sum of its proper divisors (227224991).

102100121221201 is an equidigital number, since it uses as much as digits as its factorization.

102100121221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227224990.

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

Adding to 102100121221201 its reverse (102122121001201), we get a palindrome (204222242222402).

The spelling of 102100121221201 in words is "one hundred two trillion, one hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred one".