20101210097 has 16 divisors (see below), whose sum is σ = 20701384704. Its totient is φ = 19506528000.

The previous prime is 20101210027. The next prime is 20101210099. The reversal of 20101210097 is 79001210102.

It is a cyclic number.

It is not a de Polignac number, because 20101210097 - 2¹⁴ = 20101193713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101210099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9521072 + ... + 9523182.

It is an arithmetic number, because the mean of its divisors is an integer number (1293836544).

Almost surely, 2^20101210097 is an apocalyptic number.

It is an amenable number.

20101210097 is a deficient number, since it is larger than the sum of its proper divisors (600174607).

20101210097 is a wasteful number, since it uses less digits than its factorization.

20101210097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 20101210097 its reverse (79001210102), we get a palindrome (99102420199).

The spelling of 20101210097 in words is "twenty billion, one hundred one million, two hundred ten thousand, ninety-seven".