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BaseRepresentation
bin11010010101110000…
…11110100010011101
31100111112012110101201
431022320132202131
5212430123033041
610255115235501
71010301252424
oct151270364235
940445173351
1014141221021
115aa7394724
1228a7a48b91
131444955c05
149821582bb
1557b72b631
hex34ae1e89d

14141221021 has 4 divisors (see below), whose sum is σ = 14442098112. Its totient is φ = 13840343932.

The previous prime is 14141221001. The next prime is 14141221063. The reversal of 14141221021 is 12012214141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12012214141 = 46325944307.

It is a cyclic number.

It is not a de Polignac number, because 14141221021 - 219 = 14140696733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14141221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14141221001) 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, 150438475 + ... + 150438568.

It is an arithmetic number, because the mean of its divisors is an integer number (3610524528).

Almost surely, 214141221021 is an apocalyptic number.

It is an amenable number.

14141221021 is a deficient number, since it is larger than the sum of its proper divisors (300877091).

14141221021 is an equidigital number, since it uses as much as digits as its factorization.

14141221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300877090.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 14141221021 its reverse (12012214141), we get a palindrome (26153435162).

The spelling of 14141221021 in words is "fourteen billion, one hundred forty-one million, two hundred twenty-one thousand, twenty-one".

Divisors: 1 47 300877043 14141221021