2101123002222 has 72 divisors (see below), whose sum is σ = 4866231890520. Its totient is φ = 654409677600.

The previous prime is 2101123002217. The next prime is 2101123002233. The reversal of 2101123002222 is 2222003211012.

2101123002222 is a `hidden beast` number, since 210 + 1 + 1 + 230 + 0 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2101123002195 and 2101123002204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1592604 + ... + 2595887.

It is an arithmetic number, because the mean of its divisors is an integer number (67586554035).

Almost surely, 2^{2101123002222} is an apocalyptic number.

2101123002222 is an abundant number, since it is smaller than the sum of its proper divisors (2765108888298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101123002222 is a wasteful number, since it uses less digits than its factorization.

2101123002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188590 (or 4188556 counting only the distinct ones).

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

Adding to 2101123002222 its reverse (2222003211012), we get a palindrome (4323126213234).

The spelling of 2101123002222 in words is "two trillion, one hundred one billion, one hundred twenty-three million, two thousand, two hundred twenty-two".