2101100021122 has 16 divisors (see below), whose sum is σ = 3317701377600. Its totient is φ = 995205396240.

The previous prime is 2101100021087. The next prime is 2101100021123. The reversal of 2101100021122 is 2211200011012.

It is a super-2 number, since 2×2101100021122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101100021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724029 + ... + 2174032.

It is an arithmetic number, because the mean of its divisors is an integer number (207356336100).

Almost surely, 2^{2101100021122} is an apocalyptic number.

2101100021122 is a deficient number, since it is larger than the sum of its proper divisors (1216601356478).

2101100021122 is a wasteful number, since it uses less digits than its factorization.

2101100021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917161.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101100021122 its reverse (2211200011012), we get a palindrome (4312300032134).

The spelling of 2101100021122 in words is "two trillion, one hundred one billion, one hundred million, twenty-one thousand, one hundred twenty-two".