21021212301132 has 24 divisors (see below), whose sum is σ = 49740333334272. Its totient is φ = 6908379629200.

The previous prime is 21021212301113. The next prime is 21021212301161. The reversal of 21021212301132 is 23110321212012.

It is a junction number, because it is equal to n+sod(n) for n = 21021212301099 and 21021212301108.

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, 12336391344 + ... + 12336393047.

It is an arithmetic number, because the mean of its divisors is an integer number (2072513888928).

Almost surely, 2^{21021212301132} is an apocalyptic number.

It is an amenable number.

21021212301132 is an abundant number, since it is smaller than the sum of its proper divisors (28719121033140).

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

21021212301132 is a wasteful number, since it uses less digits than its factorization.

21021212301132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24672784469 (or 24672784467 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21021212301132 its reverse (23110321212012), we get a palindrome (44131533513144).

The spelling of 21021212301132 in words is "twenty-one trillion, twenty-one billion, two hundred twelve million, three hundred one thousand, one hundred thirty-two".