202101011197 has 2 divisors, whose sum is σ = 202101011198. Its totient is φ = 202101011196.

The previous prime is 202101011171. The next prime is 202101011257. The reversal of 202101011197 is 791110101202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177831733401 + 24269277796 = 421701^2 + 155786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202101011197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202101011597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050505598 + 101050505599.

It is an arithmetic number, because the mean of its divisors is an integer number (101050505599).

Almost surely, 2^202101011197 is an apocalyptic number.

It is an amenable number.

202101011197 is a deficient number, since it is larger than the sum of its proper divisors (1).

202101011197 is an equidigital number, since it uses as much as digits as its factorization.

202101011197 is an odious number, because the sum of its binary digits is odd.

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

Adding to 202101011197 its reverse (791110101202), we get a palindrome (993211112399).

The spelling of 202101011197 in words is "two hundred two billion, one hundred one million, eleven thousand, one hundred ninety-seven".