201122431421 has 8 divisors (see below), whose sum is σ = 209682712800. Its totient is φ = 192738650832.

The previous prime is 201122431399. The next prime is 201122431429. The reversal of 201122431421 is 124134221102.

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 201122431421 - 2⁶ = 201122431357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122431429) 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, 44122871 + ... + 44127428.

It is an arithmetic number, because the mean of its divisors is an integer number (26210339100).

Almost surely, 2^201122431421 is an apocalyptic number.

It is an amenable number.

201122431421 is a deficient number, since it is larger than the sum of its proper divisors (8560281379).

201122431421 is an equidigital number, since it uses as much as digits as its factorization.

201122431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88250395.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 201122431421 its reverse (124134221102), we get a palindrome (325256652523).

The spelling of 201122431421 in words is "two hundred one billion, one hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty-one".