2110121101810 has 16 divisors (see below), whose sum is σ = 3860483852952. Its totient is φ = 830211580800.

The previous prime is 2110121101769. The next prime is 2110121101811. The reversal of 2110121101810 is 181011210112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 748365136561 + 1361755965249 = 865081^2 + 1166943^2 .

It is a super-2 number, since 2×2110121101810² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2110121101811) 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, 1729606851 + ... + 1729608070.

Almost surely, 2^{2110121101810} is an apocalyptic number.

2110121101810 is a deficient number, since it is larger than the sum of its proper divisors (1750362751142).

2110121101810 is a wasteful number, since it uses less digits than its factorization.

2110121101810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459214989.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 2110121101810 its reverse (181011210112), we get a palindrome (2291132311922).

The spelling of 2110121101810 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, one hundred one thousand, eight hundred ten".