21113133100224 has 56 divisors (see below), whose sum is σ = 60940179636288. Its totient is φ = 6397919120640.

The previous prime is 21113133100211. The next prime is 21113133100237. The reversal of 21113133100224 is 42200133131112.

It is an interprime number because it is at equal distance from previous prime (21113133100211) and next prime (21113133100237).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21113133100194 and 21113133100203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998372202 + ... + 4998376425.

Almost surely, 2^{21113133100224} is an apocalyptic number.

21113133100224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21113133100224 is an abundant number, since it is smaller than the sum of its proper divisors (39827046536064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113133100224 is a wasteful number, since it uses less digits than its factorization.

21113133100224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996748653 (or 9996748643 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21113133100224 its reverse (42200133131112), we get a palindrome (63313266231336).

The spelling of 21113133100224 in words is "twenty-one trillion, one hundred thirteen billion, one hundred thirty-three million, one hundred thousand, two hundred twenty-four".