21200015150 has 24 divisors (see below), whose sum is σ = 39441381840. Its totient is φ = 8477994560.

The previous prime is 21200015143. The next prime is 21200015183. The reversal of 21200015150 is 5151000212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172367 + ... + 268533.

It is an arithmetic number, because the mean of its divisors is an integer number (1643390910).

Almost surely, 2^21200015150 is an apocalyptic number.

21200015150 is a deficient number, since it is larger than the sum of its proper divisors (18241366690).

21200015150 is a wasteful number, since it uses less digits than its factorization.

21200015150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100588 (or 100583 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 21200015150 its reverse (5151000212), we get a palindrome (26351015362).

The spelling of 21200015150 in words is "twenty-one billion, two hundred million, fifteen thousand, one hundred fifty".