10011012121 has 8 divisors (see below), whose sum is σ = 10925719488. Its totient is φ = 9097074000.

The previous prime is 10011012119. The next prime is 10011012157. The reversal of 10011012121 is 12121011001.

10011012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10011012121 - 2¹ = 10011012119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011012098 and 10011012107.

It is not an unprimeable number, because it can be changed into a prime (10011012181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164925 + ... + 217306.

It is an arithmetic number, because the mean of its divisors is an integer number (1365714936).

Almost surely, 2^10011012121 is an apocalyptic number.

10011012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10011012121 is a deficient number, since it is larger than the sum of its proper divisors (914707367).

10011012121 is a wasteful number, since it uses less digits than its factorization.

10011012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384623.

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

Adding to 10011012121 its reverse (12121011001), we get a palindrome (22132023122).

The spelling of 10011012121 in words is "ten billion, eleven million, twelve thousand, one hundred twenty-one".