101000100012197 has 2 divisors, whose sum is σ = 101000100012198. Its totient is φ = 101000100012196.

The previous prime is 101000100012151. The next prime is 101000100012233. The reversal of 101000100012197 is 791210001000101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61942424863201 + 39057675148996 = 7870351^2 + 6249614^2 .

It is an emirp because it is prime and its reverse (791210001000101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101000100012197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101000100012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500050006098 + 50500050006099.

It is an arithmetic number, because the mean of its divisors is an integer number (50500050006099).

Almost surely, 2^{101000100012197} is an apocalyptic number.

It is an amenable number.

101000100012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000100012197 is an equidigital number, since it uses as much as digits as its factorization.

101000100012197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 23.

Adding to 101000100012197 its reverse (791210001000101), we get a palindrome (892210101012298).

The spelling of 101000100012197 in words is "one hundred one trillion, one hundred million, twelve thousand, one hundred ninety-seven".