20121333100224 has 56 divisors (see below), whose sum is σ = 53241236283888. Its totient is φ = 6706664739840.

The previous prime is 20121333100217. The next prime is 20121333100301. The reversal of 20121333100224 is 42200133312102.

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 = 20121333100194 and 20121333100203.

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, 587427 + ... + 6370850.

Almost surely, 2^{20121333100224} is an apocalyptic number.

20121333100224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20121333100224 is an abundant number, since it is smaller than the sum of its proper divisors (33119903183664).

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

20121333100224 is a wasteful number, since it uses less digits than its factorization.

20121333100224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973353 (or 6973343 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20121333100224 its reverse (42200133312102), we get a palindrome (62321466412326).

The spelling of 20121333100224 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred thousand, two hundred twenty-four".