21121141545333 has 40 divisors (see below), whose sum is σ = 32940456443136. Its totient is φ = 13461466788000.

The previous prime is 21121141545277. The next prime is 21121141545377. The reversal of 21121141545333 is 33354514112112.

21121141545333 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 114 + 1 + 5 + 4 + 533 + 3 = 666.

It is not a de Polignac number, because 21121141545333 - 2⁶ = 21121141545269 is a prime.

It is a super-2 number, since 2×21121141545333² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121141541333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 559668 + ... + 6523458.

Almost surely, 2^{21121141545333} is an apocalyptic number.

21121141545333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21121141545333 is a deficient number, since it is larger than the sum of its proper divisors (11819314897803).

21121141545333 is a wasteful number, since it uses less digits than its factorization.

21121141545333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965727 (or 5965718 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 21121141545333 its reverse (33354514112112), we get a palindrome (54475655657445).

The spelling of 21121141545333 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred forty-one million, five hundred forty-five thousand, three hundred thirty-three".