42022013421 has 8 divisors (see below), whose sum is σ = 56069406400. Its totient is φ = 27994648032.

The previous prime is 42022013417. The next prime is 42022013479. The reversal of 42022013421 is 12431022024.

42022013421 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 not a de Polignac number, because 42022013421 - 2² = 42022013417 is a prime.

It is a super-2 number, since 2×42022013421² (a number of 22 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 (42022013021) 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, 5002000 + ... + 5010393.

It is an arithmetic number, because the mean of its divisors is an integer number (7008675800).

Almost surely, 2^42022013421 is an apocalyptic number.

It is an amenable number.

42022013421 is a deficient number, since it is larger than the sum of its proper divisors (14047392979).

42022013421 is a wasteful number, since it uses less digits than its factorization.

42022013421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10013795.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42022013421 its reverse (12431022024), we get a palindrome (54453035445).

The spelling of 42022013421 in words is "forty-two billion, twenty-two million, thirteen thousand, four hundred twenty-one".