124020422151421 has 8 divisors (see below), whose sum is σ = 124714104239520. Its totient is φ = 123326749292208.

The previous prime is 124020422151397. The next prime is 124020422151433. The reversal of 124020422151421 is 124151224020421.

It is a happy number.

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 124020422151421 - 2¹⁷ = 124020422020349 is a prime.

It is a super-2 number, since 2×124020422151421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124020422151481) 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, 25584835 + ... + 30043711.

It is an arithmetic number, because the mean of its divisors is an integer number (15589263029940).

Almost surely, 2^{124020422151421} is an apocalyptic number.

It is an amenable number.

124020422151421 is a deficient number, since it is larger than the sum of its proper divisors (693682088099).

124020422151421 is a wasteful number, since it uses less digits than its factorization.

124020422151421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614443.

The product of its (nonzero) digits is 10240, while the sum is 31.

Adding to 124020422151421 its reverse (124151224020421), we get a palindrome (248171646171842).

The spelling of 124020422151421 in words is "one hundred twenty-four trillion, twenty billion, four hundred twenty-two million, one hundred fifty-one thousand, four hundred twenty-one".