22141401432421 has 4 divisors (see below), whose sum is σ = 22141623699244. Its totient is φ = 22141179165600.

The previous prime is 22141401432407. The next prime is 22141401432427. The reversal of 22141401432421 is 12423410414122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6782534748900 + 15358866683521 = 2604330^2 + 3919039^2 .

It is a cyclic number.

It is not a de Polignac number, because 22141401432421 - 2²¹ = 22141399335269 is a prime.

It is a super-2 number, since 2×22141401432421² (a number of 27 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 (22141401432427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110983920 + ... + 111183241.

It is an arithmetic number, because the mean of its divisors is an integer number (5535405924811).

Almost surely, 2^{22141401432421} is an apocalyptic number.

It is an amenable number.

22141401432421 is a deficient number, since it is larger than the sum of its proper divisors (222266823).

22141401432421 is an equidigital number, since it uses as much as digits as its factorization.

22141401432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222266822.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 22141401432421 its reverse (12423410414122), we get a palindrome (34564811846543).

The spelling of 22141401432421 in words is "twenty-two trillion, one hundred forty-one billion, four hundred one million, four hundred thirty-two thousand, four hundred twenty-one".