101011100212221 has 8 divisors (see below), whose sum is σ = 139026030399744. Its totient is φ = 65168451749760.

The previous prime is 101011100212207. The next prime is 101011100212229. The reversal of 101011100212221 is 122212001110101.

It is a happy number.

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

It is not a de Polignac number, because 101011100212221 - 2¹⁷ = 101011100081149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101011100212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011100212229) 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, 543070431156 + ... + 543070431341.

It is an arithmetic number, because the mean of its divisors is an integer number (17378253799968).

Almost surely, 2^{101011100212221} is an apocalyptic number.

It is an amenable number.

101011100212221 is a deficient number, since it is larger than the sum of its proper divisors (38014930187523).

101011100212221 is a wasteful number, since it uses less digits than its factorization.

101011100212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086140862531.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101011100212221 its reverse (122212001110101), we get a palindrome (223223101322322).

The spelling of 101011100212221 in words is "one hundred one trillion, eleven billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".