102101210200195 has 4 divisors (see below), whose sum is σ = 122521452240240. Its totient is φ = 81680968160152.

The previous prime is 102101210200193. The next prime is 102101210200219. The reversal of 102101210200195 is 591002012101201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102101210200195 - 2¹ = 102101210200193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102101210200193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10210121020015 + ... + 10210121020024.

It is an arithmetic number, because the mean of its divisors is an integer number (30630363060060).

Almost surely, 2^{102101210200195} is an apocalyptic number.

102101210200195 is a deficient number, since it is larger than the sum of its proper divisors (20420242040045).

102101210200195 is an equidigital number, since it uses as much as digits as its factorization.

102101210200195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20420242040044.

The product of its (nonzero) digits is 360, while the sum is 25.

Adding to 102101210200195 its reverse (591002012101201), we get a palindrome (693103222301396).

The spelling of 102101210200195 in words is "one hundred two trillion, one hundred one billion, two hundred ten million, two hundred thousand, one hundred ninety-five".