21036577222 has 8 divisors (see below), whose sum is σ = 31556966400. Its totient is φ = 10517588424.

The previous prime is 21036577213. The next prime is 21036577253. The reversal of 21036577222 is 22277563012.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 311697 + ... + 373132.

It is an arithmetic number, because the mean of its divisors is an integer number (3944620800).

Almost surely, 2^21036577222 is an apocalyptic number.

21036577222 is a deficient number, since it is larger than the sum of its proper divisors (10520389178).

21036577222 is a wasteful number, since it uses less digits than its factorization.

21036577222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700190.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 21036577222 in words is "twenty-one billion, thirty-six million, five hundred seventy-seven thousand, two hundred twenty-two".