102201221221010 has 16 divisors (see below), whose sum is σ = 185858715706776. Its totient is φ = 40459040153088.

The previous prime is 102201221220997. The next prime is 102201221221031. The reversal of 102201221221010 is 10122122102201.

It can be written as a sum of positive squares in 4 ways, for example, as 50978414766889 + 51222806454121 = 7139917^2 + 7157011^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102201221221010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52681040897 + ... + 52681042836.

Almost surely, 2^{102201221221010} is an apocalyptic number.

102201221221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102201221221010 is a deficient number, since it is larger than the sum of its proper divisors (83657494485766).

102201221221010 is a wasteful number, since it uses less digits than its factorization.

102201221221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105362083837.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102201221221010 its reverse (10122122102201), we get a palindrome (112323343323211).

The spelling of 102201221221010 in words is "one hundred two trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty-one thousand, ten".