10101211097 has 4 divisors (see below), whose sum is σ = 10105543140. Its totient is φ = 10096879056.

The previous prime is 10101211069. The next prime is 10101211103. The reversal of 10101211097 is 79011210101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3162487696 + 6938723401 = 56236^2 + 83299^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101211097 - 2¹⁰ = 10101210073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10101211397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162522 + ... + 2167187.

It is an arithmetic number, because the mean of its divisors is an integer number (2526385785).

Almost surely, 2^10101211097 is an apocalyptic number.

It is an amenable number.

10101211097 is a deficient number, since it is larger than the sum of its proper divisors (4332043).

10101211097 is an equidigital number, since it uses as much as digits as its factorization.

10101211097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332042.

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

Adding to 10101211097 its reverse (79011210101), we get a palindrome (89112421198).

The spelling of 10101211097 in words is "ten billion, one hundred one million, two hundred eleven thousand, ninety-seven".