10020111121 has 8 divisors (see below), whose sum is σ = 10445753088. Its totient is φ = 9600870000.

The previous prime is 10020111113. The next prime is 10020111169. The reversal of 10020111121 is 12111102001.

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 10020111121 - 2³ = 10020111113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020111098 and 10020111107.

It is not an unprimeable number, because it can be changed into a prime (10020115121) 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, 1597015 + ... + 1603276.

It is an arithmetic number, because the mean of its divisors is an integer number (1305719136).

Almost surely, 2^10020111121 is an apocalyptic number.

It is an amenable number.

10020111121 is a deficient number, since it is larger than the sum of its proper divisors (425641967).

10020111121 is a wasteful number, since it uses less digits than its factorization.

10020111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200423.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10020111121 its reverse (12111102001), we get a palindrome (22131213122).

The spelling of 10020111121 in words is "ten billion, twenty million, one hundred eleven thousand, one hundred twenty-one".