101201021197 has 2 divisors, whose sum is σ = 101201021198. Its totient is φ = 101201021196.

The previous prime is 101201021191. The next prime is 101201021237. The reversal of 101201021197 is 791120102101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100959343081 + 241678116 = 317741^2 + 15546^2 .

It is a cyclic number.

It is not a de Polignac number, because 101201021197 - 2³¹ = 99053537549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101201021191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600510598 + 50600510599.

It is an arithmetic number, because the mean of its divisors is an integer number (50600510599).

Almost surely, 2^101201021197 is an apocalyptic number.

It is an amenable number.

101201021197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201021197 is an equidigital number, since it uses as much as digits as its factorization.

101201021197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 101201021197 its reverse (791120102101), we get a palindrome (892321123298).

The spelling of 101201021197 in words is "one hundred one billion, two hundred one million, twenty-one thousand, one hundred ninety-seven".