111221000002101 has 8 divisors (see below), whose sum is σ = 161776000003104. Its totient is φ = 67406666667920.

The previous prime is 111221000002069. The next prime is 111221000002111. The reversal of 111221000002101 is 101200000122111.

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 111221000002101 - 2⁵ = 111221000002069 is a prime.

It is a super-2 number, since 2×111221000002101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221000002111) 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, 1685166666666 + ... + 1685166666731.

It is an arithmetic number, because the mean of its divisors is an integer number (20222000000388).

Almost surely, 2^{111221000002101} is an apocalyptic number.

111221000002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111221000002101 is a deficient number, since it is larger than the sum of its proper divisors (50555000001003).

111221000002101 is a wasteful number, since it uses less digits than its factorization.

111221000002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370333333411.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111221000002101 its reverse (101200000122111), we get a palindrome (212421000124212).

The spelling of 111221000002101 in words is "one hundred eleven trillion, two hundred twenty-one billion, two thousand, one hundred one".