101221101111201 has 4 divisors (see below), whose sum is σ = 134961468148272. Its totient is φ = 67480734074132.

The previous prime is 101221101111121. The next prime is 101221101111223. The reversal of 101221101111201 is 102111101122101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101221101111201 - 2¹⁰ = 101221101110177 is a prime.

It is a super-2 number, since 2×101221101111201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101221101111001) 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, 16870183518531 + ... + 16870183518536.

It is an arithmetic number, because the mean of its divisors is an integer number (33740367037068).

Almost surely, 2^{101221101111201} is an apocalyptic number.

It is an amenable number.

101221101111201 is a deficient number, since it is larger than the sum of its proper divisors (33740367037071).

101221101111201 is an equidigital number, since it uses as much as digits as its factorization.

101221101111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33740367037070.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101221101111201 its reverse (102111101122101), we get a palindrome (203332202233302).

The spelling of 101221101111201 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred one million, one hundred eleven thousand, two hundred one".