2100122212203 has 24 divisors (see below), whose sum is σ = 3150115777536. Its totient is φ = 1346804247600.

The previous prime is 2100122212187. The next prime is 2100122212217. The reversal of 2100122212203 is 3022122210012.

2100122212203 is a `hidden beast` number, since 210 + 0 + 12 + 221 + 220 + 3 = 666.

It is not a de Polignac number, because 2100122212203 - 2⁴ = 2100122212187 is a prime.

It is a super-2 number, since 2×2100122212203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100122012203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22490293 + ... + 22583478.

It is an arithmetic number, because the mean of its divisors is an integer number (131254824064).

Almost surely, 2^{2100122212203} is an apocalyptic number.

2100122212203 is a deficient number, since it is larger than the sum of its proper divisors (1049993565333).

2100122212203 is a wasteful number, since it uses less digits than its factorization.

2100122212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45073975 (or 45073972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2100122212203 its reverse (3022122210012), we get a palindrome (5122244422215).

It can be divided in two parts, 2100122 and 212203, that added together give a triangular number (2312325 = T₂₁₅₀).

The spelling of 2100122212203 in words is "two trillion, one hundred billion, one hundred twenty-two million, two hundred twelve thousand, two hundred three".