21141114021 has 8 divisors (see below), whose sum is σ = 31320168960. Its totient is φ = 14094075996.

The previous prime is 21141113993. The next prime is 21141114109. The reversal of 21141114021 is 12041114112.

21141114021 is a `hidden beast` number, since 211 + 41 + 11 + 402 + 1 = 666.

It is not a de Polignac number, because 21141114021 - 2⁶ = 21141113957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21141113985 and 21141114003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141114121) 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, 391502085 + ... + 391502138.

It is an arithmetic number, because the mean of its divisors is an integer number (3915021120).

Almost surely, 2^21141114021 is an apocalyptic number.

It is an amenable number.

21141114021 is a deficient number, since it is larger than the sum of its proper divisors (10179054939).

21141114021 is an equidigital number, since it uses as much as digits as its factorization.

21141114021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783004232 (or 783004226 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21141114021 its reverse (12041114112), we get a palindrome (33182228133).

Subtracting from 21141114021 its reverse (12041114112), we obtain a palindrome (9099999909).

The spelling of 21141114021 in words is "twenty-one billion, one hundred forty-one million, one hundred fourteen thousand, twenty-one".