21253100256110 has 64 divisors (see below), whose sum is σ = 39499777336320. Its totient is φ = 8227221166080.

The previous prime is 21253100256107. The next prime is 21253100256139. The reversal of 21253100256110 is 1165200135212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1182229442 + ... + 1182247418.

It is an arithmetic number, because the mean of its divisors is an integer number (617184020880).

Almost surely, 2^{21253100256110} is an apocalyptic number.

21253100256110 is a deficient number, since it is larger than the sum of its proper divisors (18246677080210).

21253100256110 is a wasteful number, since it uses less digits than its factorization.

21253100256110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34941.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 21253100256110 in words is "twenty-one trillion, two hundred fifty-three billion, one hundred million, two hundred fifty-six thousand, one hundred ten".