21214110043 has 8 divisors (see below), whose sum is σ = 24517110240. Its totient is φ = 17979213120.

The previous prime is 21214110019. The next prime is 21214110107. The reversal of 21214110043 is 34001141212.

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 21214110043 - 2¹³ = 21214101851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21214110043.

It is not an unprimeable number, because it can be changed into a prime (21214110013) 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, 17025148 + ... + 17026393.

It is an arithmetic number, because the mean of its divisors is an integer number (3064638780).

Almost surely, 2^21214110043 is an apocalyptic number.

21214110043 is a deficient number, since it is larger than the sum of its proper divisors (3303000197).

21214110043 is an equidigital number, since it uses as much as digits as its factorization.

21214110043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34051637.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21214110043 its reverse (34001141212), we get a palindrome (55215251255).

The spelling of 21214110043 in words is "twenty-one billion, two hundred fourteen million, one hundred ten thousand, forty-three".