2101222010111 has 6 divisors (see below), whose sum is σ = 2444278664880. Its totient is φ = 1801047437196.

The previous prime is 2101222010093. The next prime is 2101222010131. The reversal of 2101222010111 is 1110102221012.

It is not a de Polignac number, because 2101222010111 - 2¹⁰ = 2101222009087 is a prime.

It is a super-2 number, since 2×2101222010111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222010131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21441040871 + ... + 21441040968.

It is an arithmetic number, because the mean of its divisors is an integer number (407379777480).

Almost surely, 2^{2101222010111} is an apocalyptic number.

2101222010111 is a deficient number, since it is larger than the sum of its proper divisors (343056654769).

2101222010111 is an equidigital number, since it uses as much as digits as its factorization.

2101222010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42882081853 (or 42882081846 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101222010111 its reverse (1110102221012), we get a palindrome (3211324231123).

The spelling of 2101222010111 in words is "two trillion, one hundred one billion, two hundred twenty-two million, ten thousand, one hundred eleven".