20211012097 has 8 divisors (see below), whose sum is σ = 20239941600. Its totient is φ = 20182102464.

The previous prime is 20211012083. The next prime is 20211012109. The reversal of 20211012097 is 79021011202.

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-20211012097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211012397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4337593 + ... + 4342249.

It is an arithmetic number, because the mean of its divisors is an integer number (2529992700).

Almost surely, 2^20211012097 is an apocalyptic number.

It is an amenable number.

20211012097 is a deficient number, since it is larger than the sum of its proper divisors (28929503).

20211012097 is a wasteful number, since it uses less digits than its factorization.

20211012097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9935.

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

Adding to 20211012097 its reverse (79021011202), we get a palindrome (99232023299).

The spelling of 20211012097 in words is "twenty billion, two hundred eleven million, twelve thousand, ninety-seven".