21150204520150 has 96 divisors (see below), whose sum is σ = 39956464944000. Its totient is φ = 8328051763200.

The previous prime is 21150204520117. The next prime is 21150204520187. The reversal of 21150204520150 is 5102540205112.

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, 2125857376 + ... + 2125867324.

It is an arithmetic number, because the mean of its divisors is an integer number (416213176500).

Almost surely, 2^{21150204520150} is an apocalyptic number.

21150204520150 is a deficient number, since it is larger than the sum of its proper divisors (18806260423850).

21150204520150 is a wasteful number, since it uses less digits than its factorization.

21150204520150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11594 (or 11589 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 21150204520150 its reverse (5102540205112), we get a palindrome (26252744725262).

The spelling of 21150204520150 in words is "twenty-one trillion, one hundred fifty billion, two hundred four million, five hundred twenty thousand, one hundred fifty".