21533322114 has 48 divisors (see below), whose sum is σ = 48231915264. Its totient is φ = 6935940000.

The previous prime is 21533322091. The next prime is 21533322143. The reversal of 21533322114 is 41122333512.

21533322114 is a `hidden beast` number, since 215 + 3 + 332 + 2 + 114 = 666.

It is a super-2 number, since 2×21533322114² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352864 + ... + 409364.

It is an arithmetic number, because the mean of its divisors is an integer number (1004831568).

Almost surely, 2^21533322114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21533322114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24115957632).

21533322114 is an abundant number, since it is smaller than the sum of its proper divisors (26698593150).

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

21533322114 is a wasteful number, since it uses less digits than its factorization.

21533322114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57223 (or 57220 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 21533322114 its reverse (41122333512), we get a palindrome (62655655626).

The spelling of 21533322114 in words is "twenty-one billion, five hundred thirty-three million, three hundred twenty-two thousand, one hundred fourteen".