4020122101421 has 8 divisors (see below), whose sum is σ = 4377628423200. Its totient is φ = 3677207874480.

The previous prime is 4020122101399. The next prime is 4020122101453. The reversal of 4020122101421 is 1241012210204.

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 4020122101421 - 2¹⁸ = 4020121839277 is a prime.

It is a super-2 number, since 2×4020122101421² (a number of 26 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 = 4020122101393 and 4020122101402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020122101481) 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, 3648023135 + ... + 3648024236.

It is an arithmetic number, because the mean of its divisors is an integer number (547203552900).

Almost surely, 2^{4020122101421} is an apocalyptic number.

It is an amenable number.

4020122101421 is a deficient number, since it is larger than the sum of its proper divisors (357506321779).

4020122101421 is a wasteful number, since it uses less digits than its factorization.

4020122101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296047419.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 4020122101421 its reverse (1241012210204), we get a palindrome (5261134311625).

The spelling of 4020122101421 in words is "four trillion, twenty billion, one hundred twenty-two million, one hundred one thousand, four hundred twenty-one".