10021010121121 has 8 divisors (see below), whose sum is σ = 10055448470144. Its totient is φ = 9986612266800.

The previous prime is 10021010121049. The next prime is 10021010121131. The reversal of 10021010121121 is 12112101012001.

It is a happy number.

10021010121121 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 10021010121121 - 2²¹ = 10021008023969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021010121131) 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, 9627855 + ... + 10617796.

It is an arithmetic number, because the mean of its divisors is an integer number (1256931058768).

Almost surely, 2^{10021010121121} is an apocalyptic number.

It is an amenable number.

10021010121121 is a deficient number, since it is larger than the sum of its proper divisors (34438349023).

10021010121121 is a wasteful number, since it uses less digits than its factorization.

10021010121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20247351.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10021010121121 its reverse (12112101012001), we get a palindrome (22133111133122).

The spelling of 10021010121121 in words is "ten trillion, twenty-one billion, ten million, one hundred twenty-one thousand, one hundred twenty-one".