10111020110021 has 8 divisors (see below), whose sum is σ = 10643221042080. Its totient is φ = 9578823375888.

The previous prime is 10111020110003. The next prime is 10111020110083. The reversal of 10111020110021 is 12001102011101.

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

It is a cyclic number.

It is not a de Polignac number, because 10111020110021 - 2²⁶ = 10110953001157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111020109984 and 10111020110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111020110221) 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, 4702970 + ... + 6506916.

It is an arithmetic number, because the mean of its divisors is an integer number (1330402630260).

Almost surely, 2^{10111020110021} is an apocalyptic number.

It is an amenable number.

10111020110021 is a deficient number, since it is larger than the sum of its proper divisors (532200932059).

10111020110021 is a wasteful number, since it uses less digits than its factorization.

10111020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098963.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10111020110021 its reverse (12001102011101), we get a palindrome (22112122121122).

The spelling of 10111020110021 in words is "ten trillion, one hundred eleven billion, twenty million, one hundred ten thousand, twenty-one".