21125151062 has 16 divisors (see below), whose sum is σ = 32156217600. Its totient is φ = 10407443112.

The previous prime is 21125151059. The next prime is 21125151101. The reversal of 21125151062 is 26015152112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216668 + ... + 298655.

It is an arithmetic number, because the mean of its divisors is an integer number (2009763600).

Almost surely, 2^21125151062 is an apocalyptic number.

21125151062 is a deficient number, since it is larger than the sum of its proper divisors (11031066538).

21125151062 is a wasteful number, since it uses less digits than its factorization.

21125151062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515627.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 21125151062 in words is "twenty-one billion, one hundred twenty-five million, one hundred fifty-one thousand, sixty-two".