21322012112210 has 16 divisors (see below), whose sum is σ = 38387166541056. Its totient is φ = 8527128236208.

The previous prime is 21322012112207. The next prime is 21322012112243. The reversal of 21322012112210 is 1221121022312.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 209522672 + ... + 209624411.

It is an arithmetic number, because the mean of its divisors is an integer number (2399197908816).

Almost surely, 2^{21322012112210} is an apocalyptic number.

21322012112210 is a deficient number, since it is larger than the sum of its proper divisors (17065154428846).

21322012112210 is a wasteful number, since it uses less digits than its factorization.

21322012112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419152177.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21322012112210 its reverse (1221121022312), we get a palindrome (22543133134522).

The spelling of 21322012112210 in words is "twenty-one trillion, three hundred twenty-two billion, twelve million, one hundred twelve thousand, two hundred ten".