10021020111097 has 12 divisors (see below), whose sum is σ = 10932873911980. Its totient is φ = 9176641618176.

The previous prime is 10021020111077. The next prime is 10021020111139. The reversal of 10021020111097 is 79011102012001.

It can be written as a sum of positive squares in 6 ways, for example, as 4821256581696 + 5199763529401 = 2195736^2 + 2280299^2 .

It is not a de Polignac number, because 10021020111097 - 2¹¹ = 10021020109049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021020111077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468567822 + ... + 468589207.

Almost surely, 2^{10021020111097} is an apocalyptic number.

10021020111097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10021020111097 is a deficient number, since it is larger than the sum of its proper divisors (911853800883).

10021020111097 is an equidigital number, since it uses as much as digits as its factorization.

10021020111097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937157100 (or 937157083 counting only the distinct ones).

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

Adding to 10021020111097 its reverse (79011102012001), we get a palindrome (89032122123098).

The spelling of 10021020111097 in words is "ten trillion, twenty-one billion, twenty million, one hundred eleven thousand, ninety-seven".