21150035225205 has 16 divisors (see below), whose sum is σ = 35621111958720. Its totient is φ = 10686333587328.

The previous prime is 21150035225197. The next prime is 21150035225219. The reversal of 21150035225205 is 50252253005112.

It is not a de Polignac number, because 21150035225205 - 2³ = 21150035225197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37105324672 + ... + 37105325241.

It is an arithmetic number, because the mean of its divisors is an integer number (2226319497420).

Almost surely, 2^{21150035225205} is an apocalyptic number.

It is an amenable number.

21150035225205 is a deficient number, since it is larger than the sum of its proper divisors (14471076733515).

21150035225205 is a wasteful number, since it uses less digits than its factorization.

21150035225205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74210649940.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 21150035225205 in words is "twenty-one trillion, one hundred fifty billion, thirty-five million, two hundred twenty-five thousand, two hundred five".