2110210202121 has 24 divisors (see below), whose sum is σ = 3277280155104. Its totient is φ = 1204249798080.

The previous prime is 2110210202119. The next prime is 2110210202159. The reversal of 2110210202121 is 1212020120112.

It is not a de Polignac number, because 2110210202121 - 2¹ = 2110210202119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2110210202121.

It is not an unprimeable number, because it can be changed into a prime (2110210202171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9319915 + ... + 9543648.

It is an arithmetic number, because the mean of its divisors is an integer number (136553339796).

Almost surely, 2^{2110210202121} is an apocalyptic number.

2110210202121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2110210202121 is a deficient number, since it is larger than the sum of its proper divisors (1167069952983).

2110210202121 is a wasteful number, since it uses less digits than its factorization.

2110210202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18864341 (or 18864334 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2110210202121 its reverse (1212020120112), we get a palindrome (3322230322233).

The spelling of 2110210202121 in words is "two trillion, one hundred ten billion, two hundred ten million, two hundred two thousand, one hundred twenty-one".