21132222410 has 32 divisors (see below), whose sum is σ = 41190366672. Its totient is φ = 7759549440.

The previous prime is 21132222407. The next prime is 21132222467. The reversal of 21132222410 is 1422223112.

It can be written as a sum of positive squares in 8 ways, for example, as 208889209 + 20923333201 = 14453^2 + 144649^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425519 + ... + 472578.

Almost surely, 2^21132222410 is an apocalyptic number.

21132222410 is a deficient number, since it is larger than the sum of its proper divisors (20058144262).

21132222410 is a wasteful number, since it uses less digits than its factorization.

21132222410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898298.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21132222410 its reverse (1422223112), we get a palindrome (22554445522).

The spelling of 21132222410 in words is "twenty-one billion, one hundred thirty-two million, two hundred twenty-two thousand, four hundred ten".