21013301133212 has 24 divisors (see below), whose sum is σ = 37972697333760. Its totient is φ = 10164194495280.

The previous prime is 21013301133197. The next prime is 21013301133257. The reversal of 21013301133212 is 21233110331012.

It is a congruent number.

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, 29073728 + ... + 29787719.

It is an arithmetic number, because the mean of its divisors is an integer number (1582195722240).

Almost surely, 2^{21013301133212} is an apocalyptic number.

It is an amenable number.

21013301133212 is a deficient number, since it is larger than the sum of its proper divisors (16959396200548).

21013301133212 is a wasteful number, since it uses less digits than its factorization.

21013301133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58864361 (or 58864359 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21013301133212 its reverse (21233110331012), we get a palindrome (42246411464224).

The spelling of 21013301133212 in words is "twenty-one trillion, thirteen billion, three hundred one million, one hundred thirty-three thousand, two hundred twelve".