21200015341452 has 24 divisors (see below), whose sum is σ = 49606834774896. Its totient is φ = 7046652878848.

The previous prime is 21200015341423. The next prime is 21200015341471. The reversal of 21200015341452 is 25414351000212.

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, 2502358293 + ... + 2502366764.

It is an arithmetic number, because the mean of its divisors is an integer number (2066951448954).

Almost surely, 2^{21200015341452} is an apocalyptic number.

It is an amenable number.

21200015341452 is an abundant number, since it is smaller than the sum of its proper divisors (28406819433444).

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

21200015341452 is a wasteful number, since it uses less digits than its factorization.

21200015341452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004725417 (or 5004725415 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 21200015341452 its reverse (25414351000212), we get a palindrome (46614366341664).

The spelling of 21200015341452 in words is "twenty-one trillion, two hundred billion, fifteen million, three hundred forty-one thousand, four hundred fifty-two".