100201111120195 has 4 divisors (see below), whose sum is σ = 120241333344240. Its totient is φ = 80160888896152.

The previous prime is 100201111120189. The next prime is 100201111120249. The reversal of 100201111120195 is 591021111102001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100201111120195 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10020111112015 + ... + 10020111112024.

It is an arithmetic number, because the mean of its divisors is an integer number (30060333336060).

Almost surely, 2^{100201111120195} is an apocalyptic number.

100201111120195 is a deficient number, since it is larger than the sum of its proper divisors (20040222224045).

100201111120195 is an equidigital number, since it uses as much as digits as its factorization.

100201111120195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20040222224044.

The product of its (nonzero) digits is 180, while the sum is 25.

Adding to 100201111120195 its reverse (591021111102001), we get a palindrome (691222222222196).

The spelling of 100201111120195 in words is "one hundred trillion, two hundred one billion, one hundred eleven million, one hundred twenty thousand, one hundred ninety-five".