21222231200210 has 32 divisors (see below), whose sum is σ = 39286807002432. Its totient is φ = 8249387630400.

The previous prime is 21222231200153. The next prime is 21222231200263. The reversal of 21222231200210 is 1200213222212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125179316 + ... + 125348735.

It is an arithmetic number, because the mean of its divisors is an integer number (1227712718826).

Almost surely, 2^{21222231200210} is an apocalyptic number.

21222231200210 is a deficient number, since it is larger than the sum of its proper divisors (18064575802222).

21222231200210 is a wasteful number, since it uses less digits than its factorization.

21222231200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250528298.

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

Adding to 21222231200210 its reverse (1200213222212), we get a palindrome (22422444422422).

The spelling of 21222231200210 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty-one million, two hundred thousand, two hundred ten".