21124214033 has 8 divisors (see below), whose sum is σ = 22750834176. Its totient is φ = 19497834000.

The previous prime is 21124213997. The next prime is 21124214063. The reversal of 21124214033 is 33041242112.

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 21124214033 - 2⁶ = 21124213969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21124214063) 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, 149918 + ... + 254408.

It is an arithmetic number, because the mean of its divisors is an integer number (2843854272).

Almost surely, 2^21124214033 is an apocalyptic number.

It is an amenable number.

21124214033 is a deficient number, since it is larger than the sum of its proper divisors (1626620143).

21124214033 is a wasteful number, since it uses less digits than its factorization.

21124214033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120055.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21124214033 its reverse (33041242112), we get a palindrome (54165456145).

The spelling of 21124214033 in words is "twenty-one billion, one hundred twenty-four million, two hundred fourteen thousand, thirty-three".