2101221022111 has 8 divisors (see below), whose sum is σ = 2143575761040. Its totient is φ = 2059090977408.

The previous prime is 2101221022097. The next prime is 2101221022127. The reversal of 2101221022111 is 1112201221012.

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 2101221022111 - 2⁷ = 2101221021983 is a prime.

It is a super-2 number, since 2×2101221022111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101221022141) 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, 56154666 + ... + 56192071.

It is an arithmetic number, because the mean of its divisors is an integer number (267946970130).

Almost surely, 2^{2101221022111} is an apocalyptic number.

2101221022111 is a deficient number, since it is larger than the sum of its proper divisors (42354738929).

2101221022111 is a wasteful number, since it uses less digits than its factorization.

2101221022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112347113.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101221022111 its reverse (1112201221012), we get a palindrome (3213422243123).

The spelling of 2101221022111 in words is "two trillion, one hundred one billion, two hundred twenty-one million, twenty-two thousand, one hundred eleven".