20101202197 has 8 divisors (see below), whose sum is σ = 20374310880. Its totient is φ = 19828830000.

The previous prime is 20101202179. The next prime is 20101202207. The reversal of 20101202197 is 79120210102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101202197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101202117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129054 + ... + 238447.

It is an arithmetic number, because the mean of its divisors is an integer number (2546788860).

Almost surely, 2^20101202197 is an apocalyptic number.

It is an amenable number.

20101202197 is a deficient number, since it is larger than the sum of its proper divisors (273108683).

20101202197 is an equidigital number, since it uses as much as digits as its factorization.

20101202197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368243.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 20101202197 its reverse (79120210102), we get a palindrome (99221412299).

The spelling of 20101202197 in words is "twenty billion, one hundred one million, two hundred two thousand, one hundred ninety-seven".