42203122020421 has 8 divisors (see below), whose sum is σ = 42439115099520. Its totient is φ = 41967131402208.

The previous prime is 42203122020413. The next prime is 42203122020457. The reversal of 42203122020421 is 12402022130224.

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 42203122020421 - 2³ = 42203122020413 is a prime.

It is a super-2 number, since 2×42203122020421² (a number of 28 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 (42203122020481) 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, 42013785 + ... + 43006561.

It is an arithmetic number, because the mean of its divisors is an integer number (5304889387440).

Almost surely, 2^{42203122020421} is an apocalyptic number.

It is an amenable number.

42203122020421 is a deficient number, since it is larger than the sum of its proper divisors (235993079099).

42203122020421 is a wasteful number, since it uses less digits than its factorization.

42203122020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230443.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42203122020421 its reverse (12402022130224), we get a palindrome (54605144150645).

The spelling of 42203122020421 in words is "forty-two trillion, two hundred three billion, one hundred twenty-two million, twenty thousand, four hundred twenty-one".