102120200210001 has 4 divisors (see below), whose sum is σ = 136160266946672. Its totient is φ = 68080133473332.

The previous prime is 102120200209921. The next prime is 102120200210023. The reversal of 102120200210001 is 100012002021201.

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 not a de Polignac number, because 102120200210001 - 2¹⁰ = 102120200208977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120200210051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17020033368331 + ... + 17020033368336.

It is an arithmetic number, because the mean of its divisors is an integer number (34040066736668).

Almost surely, 2^{102120200210001} is an apocalyptic number.

It is an amenable number.

102120200210001 is a deficient number, since it is larger than the sum of its proper divisors (34040066736671).

102120200210001 is an equidigital number, since it uses as much as digits as its factorization.

102120200210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34040066736670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102120200210001 its reverse (100012002021201), we get a palindrome (202132202231202).

The spelling of 102120200210001 in words is "one hundred two trillion, one hundred twenty billion, two hundred million, two hundred ten thousand, one".