21003312322132 has 48 divisors (see below), whose sum is σ = 42062910035328. Its totient is φ = 8989360012800.

The previous prime is 21003312322051. The next prime is 21003312322147. The reversal of 21003312322132 is 23122321330012.

It is a super-2 number, since 2×21003312322132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003312322097 and 21003312322106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471570168 + ... + 471614704.

It is an arithmetic number, because the mean of its divisors is an integer number (876310625736).

Almost surely, 2^{21003312322132} is an apocalyptic number.

It is an amenable number.

21003312322132 is an abundant number, since it is smaller than the sum of its proper divisors (21059597713196).

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

21003312322132 is a wasteful number, since it uses less digits than its factorization.

21003312322132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66736 (or 66734 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21003312322132 its reverse (23122321330012), we get a palindrome (44125633652144).

The spelling of 21003312322132 in words is "twenty-one trillion, three billion, three hundred twelve million, three hundred twenty-two thousand, one hundred thirty-two".