21322103020210 has 64 divisors (see below), whose sum is σ = 41770574167392. Its totient is φ = 7805992370176.

The previous prime is 21322103020187. The next prime is 21322103020247. The reversal of 21322103020210 is 1202030122312.

It can be written as a sum of positive squares in 16 ways, for example, as 3794910490809 + 17527192529401 = 1948053^2 + 4186549^2 .

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 31 ways as a sum of consecutive naturals, for example, 9453079 + ... + 11489338.

Almost surely, 2^{21322103020210} is an apocalyptic number.

21322103020210 is a deficient number, since it is larger than the sum of its proper divisors (20448471147182).

21322103020210 is a wasteful number, since it uses less digits than its factorization.

21322103020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20942607.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21322103020210 its reverse (1202030122312), we get a palindrome (22524133142522).

The spelling of 21322103020210 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred three million, twenty thousand, two hundred ten".