101220221201210 has 16 divisors (see below), whose sum is σ = 182196568955016. Its totient is φ = 40488050526528.

The previous prime is 101220221201137. The next prime is 101220221201213. The reversal of 101220221201210 is 12102122022101.

It can be written as a sum of positive squares in 4 ways, for example, as 101031224942041 + 188996259169 = 10051429^2 + 434737^2 .

It is not an unprimeable number, because it can be changed into a prime (101220221201213) by changing a digit.

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, 8117132 + ... + 16380728.

Almost surely, 2^{101220221201210} is an apocalyptic number.

101220221201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220221201210 is a deficient number, since it is larger than the sum of its proper divisors (80976347753806).

101220221201210 is a wasteful number, since it uses less digits than its factorization.

101220221201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488497.

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

Adding to 101220221201210 its reverse (12102122022101), we get a palindrome (113322343223311).

The spelling of 101220221201210 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred ten".