21050144510150 has 96 divisors (see below), whose sum is σ = 45212886571008. Its totient is φ = 7142082595200.

The previous prime is 21050144510147. The next prime is 21050144510183. The reversal of 21050144510150 is 5101544105012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51093980 + ... + 51504320.

It is an arithmetic number, because the mean of its divisors is an integer number (470967568448).

Almost surely, 2^{21050144510150} is an apocalyptic number.

21050144510150 is an abundant number, since it is smaller than the sum of its proper divisors (24162742060858).

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

21050144510150 is a wasteful number, since it uses less digits than its factorization.

21050144510150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411886 (or 411881 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 21050144510150 its reverse (5101544105012), we get a palindrome (26151688615162).

The spelling of 21050144510150 in words is "twenty-one trillion, fifty billion, one hundred forty-four million, five hundred ten thousand, one hundred fifty".