101111100212221 has 8 divisors (see below), whose sum is σ = 110620894551264. Its totient is φ = 91654285229520.

The previous prime is 101111100212203. The next prime is 101111100212237. The reversal of 101111100212221 is 122212001111101.

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

It is a cyclic number.

It is not a de Polignac number, because 101111100212221 - 2³¹ = 101108952728573 is a prime.

It is a super-2 number, since 2×101111100212221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101111100212195 and 101111100212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111100215221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13244835090 + ... + 13244842723.

It is an arithmetic number, because the mean of its divisors is an integer number (13827611818908).

Almost surely, 2^{101111100212221} is an apocalyptic number.

101111100212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101111100212221 is a deficient number, since it is larger than the sum of its proper divisors (9509794339043).

101111100212221 is a wasteful number, since it uses less digits than its factorization.

101111100212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26489678171.

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

Adding to 101111100212221 its reverse (122212001111101), we get a palindrome (223323101323322).

The spelling of 101111100212221 in words is "one hundred one trillion, one hundred eleven billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".