10021012120121 has 8 divisors (see below), whose sum is σ = 10123029693504. Its totient is φ = 9919085435280.

The previous prime is 10021012120109. The next prime is 10021012120129. The reversal of 10021012120121 is 12102121012001.

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 10021012120121 - 2¹⁸ = 10021011857977 is a prime.

It is a super-2 number, since 2×10021012120121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021012120096 and 10021012120105.

It is not an unprimeable number, because it can be changed into a prime (10021012120129) 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, 22500491 + ... + 22941536.

It is an arithmetic number, because the mean of its divisors is an integer number (1265378711688).

Almost surely, 2^{10021012120121} is an apocalyptic number.

It is an amenable number.

10021012120121 is a deficient number, since it is larger than the sum of its proper divisors (102017573383).

10021012120121 is a wasteful number, since it uses less digits than its factorization.

10021012120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45444271.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021012120121 its reverse (12102121012001), we get a palindrome (22123133132122).

The spelling of 10021012120121 in words is "ten trillion, twenty-one billion, twelve million, one hundred twenty thousand, one hundred twenty-one".