21000012021302 has 8 divisors (see below), whose sum is σ = 31811899398912. Its totient is φ = 10396045555000.

The previous prime is 21000012021301. The next prime is 21000012021349. The reversal of 21000012021302 is 20312021000012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000012021301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51980227574 + ... + 51980227977.

It is an arithmetic number, because the mean of its divisors is an integer number (3976487424864).

Almost surely, 2^{21000012021302} is an apocalyptic number.

21000012021302 is a deficient number, since it is larger than the sum of its proper divisors (10811887377610).

21000012021302 is a wasteful number, since it uses less digits than its factorization.

21000012021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103960455654.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21000012021302 its reverse (20312021000012), we get a palindrome (41312033021314).

The spelling of 21000012021302 in words is "twenty-one trillion, twelve million, twenty-one thousand, three hundred two".