21301012213000 has 128 divisors (see below), whose sum is σ = 53733525037920. Its totient is φ = 7856934297600.

The previous prime is 21301012212979. The next prime is 21301012213057. The reversal of 21301012213000 is 31221010312.

It can be written as a sum of positive squares in 16 ways, for example, as 34877056516 + 21266135156484 = 186754^2 + 4611522^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11862444 + ... + 13539556.

Almost surely, 2^{21301012213000} is an apocalyptic number.

21301012213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21301012213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26866762518960).

21301012213000 is an abundant number, since it is smaller than the sum of its proper divisors (32432512824920).

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

21301012213000 is a wasteful number, since it uses less digits than its factorization.

21301012213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678124 (or 1678110 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21301012213000 its reverse (31221010312), we get a palindrome (21332233223312).

The spelling of 21301012213000 in words is "twenty-one trillion, three hundred one billion, twelve million, two hundred thirteen thousand".