101221120211103 has 16 divisors (see below), whose sum is σ = 150824019846240. Its totient is φ = 67090684684032.

The previous prime is 101221120211069. The next prime is 101221120211131. The reversal of 101221120211103 is 301112021122101.

It is a happy number.

101221120211103 is a `hidden beast` number, since 10 + 1 + 221 + 120 + 211 + 103 = 666.

It is not a de Polignac number, because 101221120211103 - 2⁶ = 101221120211039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221120211503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10835054226 + ... + 10835063567.

It is an arithmetic number, because the mean of its divisors is an integer number (9426501240390).

Almost surely, 2^{101221120211103} is an apocalyptic number.

101221120211103 is a deficient number, since it is larger than the sum of its proper divisors (49602899635137).

101221120211103 is a wasteful number, since it uses less digits than its factorization.

101221120211103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670117975 (or 21670117969 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 101221120211103 its reverse (301112021122101), we get a palindrome (402333141333204).

The spelling of 101221120211103 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, one hundred three".