21443520201050 has 48 divisors (see below), whose sum is σ = 40563724847712. Its totient is φ = 8431607390400.

The previous prime is 21443520201023. The next prime is 21443520201079. The reversal of 21443520201050 is 5010202534412.

It is a super-2 number, since 2×21443520201050² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2801729 + ... + 7122971.

It is an arithmetic number, because the mean of its divisors is an integer number (845077600994).

Almost surely, 2^{21443520201050} is an apocalyptic number.

21443520201050 is a deficient number, since it is larger than the sum of its proper divisors (19120204646662).

21443520201050 is a wasteful number, since it uses less digits than its factorization.

21443520201050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322943 (or 4322938 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 21443520201050 its reverse (5010202534412), we get a palindrome (26453722735462).

The spelling of 21443520201050 in words is "twenty-one trillion, four hundred forty-three billion, five hundred twenty million, two hundred one thousand, fifty".