4020120420121 has 8 divisors (see below), whose sum is σ = 4329719279424. Its totient is φ = 3710572821840.

The previous prime is 4020120420103. The next prime is 4020120420133. The reversal of 4020120420121 is 1210240210204.

4020120420121 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 4020120420121 - 2¹¹ = 4020120418073 is a prime.

It is a super-2 number, since 2×4020120420121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020120426121) 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, 12652291 + ... + 12966136.

It is an arithmetic number, because the mean of its divisors is an integer number (541214909928).

Almost surely, 2^{4020120420121} is an apocalyptic number.

It is an amenable number.

4020120420121 is a deficient number, since it is larger than the sum of its proper divisors (309598859303).

4020120420121 is a wasteful number, since it uses less digits than its factorization.

4020120420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25630511.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 4020120420121 its reverse (1210240210204), we get a palindrome (5230360630325).

The spelling of 4020120420121 in words is "four trillion, twenty billion, one hundred twenty million, four hundred twenty thousand, one hundred twenty-one".