2141400221 has 4 divisors (see below), whose sum is σ = 2177695200. Its totient is φ = 2105105244.

The previous prime is 2141400167. The next prime is 2141400269. The reversal of 2141400221 is 1220041412.

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.

It is a cyclic number.

It is not a de Polignac number, because 2141400221 - 2¹⁴ = 2141383837 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 2141400221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141300221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18147401 + ... + 18147518.

It is an arithmetic number, because the mean of its divisors is an integer number (544423800).

Almost surely, 2^2141400221 is an apocalyptic number.

It is an amenable number.

2141400221 is a deficient number, since it is larger than the sum of its proper divisors (36294979).

2141400221 is an equidigital number, since it uses as much as digits as its factorization.

2141400221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36294978.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2141400221 is about 46275.2657582860. The cubic root of 2141400221 is about 1288.9397415498.

Adding to 2141400221 its reverse (1220041412), we get a palindrome (3361441633).

The spelling of 2141400221 in words is "two billion, one hundred forty-one million, four hundred thousand, two hundred twenty-one".