101221201012210 has 8 divisors (see below), whose sum is σ = 182198161821996. Its totient is φ = 40488480404880.

The previous prime is 101221201012187. The next prime is 101221201012213. The reversal of 101221201012210 is 12210102122101.

It can be written as a sum of positive squares in 2 ways, for example, as 92202993813121 + 9018207199089 = 9602239^2 + 3003033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (101221201012213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5061060050601 + ... + 5061060050620.

Almost surely, 2^{101221201012210} is an apocalyptic number.

101221201012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221201012210 is a deficient number, since it is larger than the sum of its proper divisors (80976960809786).

101221201012210 is a wasteful number, since it uses less digits than its factorization.

101221201012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122120101228.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101221201012210 its reverse (12210102122101), we get a palindrome (113431303134311).

The spelling of 101221201012210 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred one million, twelve thousand, two hundred ten".