10021110121 has 8 divisors (see below), whose sum is σ = 10933862688. Its totient is φ = 9108648000.

The previous prime is 10021110119. The next prime is 10021110137. The reversal of 10021110121 is 12101112001.

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 10021110121 - 2¹ = 10021110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021110098 and 10021110107.

It is not an unprimeable number, because it can be changed into a prime (10021110101) 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, 2961 + ... + 141601.

It is an arithmetic number, because the mean of its divisors is an integer number (1366732836).

Almost surely, 2^10021110121 is an apocalyptic number.

10021110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021110121 is a deficient number, since it is larger than the sum of its proper divisors (912752567).

10021110121 is a wasteful number, since it uses less digits than its factorization.

10021110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145223.

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

Adding to 10021110121 its reverse (12101112001), we get a palindrome (22122222122).

The spelling of 10021110121 in words is "ten billion, twenty-one million, one hundred ten thousand, one hundred twenty-one".