2101002222222 has 48 divisors (see below), whose sum is σ = 4561402023360. Its totient is φ = 698915238336.

The previous prime is 2101002222167. The next prime is 2101002222233. The reversal of 2101002222222 is 2222222001012.

2101002222222 is a `hidden beast` number, since 210 + 10 + 0 + 2 + 222 + 222 = 666.

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

2101002222222 is a modest number, since divided by 2222222 gives 210100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2101002222195 and 2101002222204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20617548 + ... + 20719200.

It is an arithmetic number, because the mean of its divisors is an integer number (95029208820).

Almost surely, 2^{2101002222222} is an apocalyptic number.

2101002222222 is an abundant number, since it is smaller than the sum of its proper divisors (2460399801138).

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

2101002222222 is a wasteful number, since it uses less digits than its factorization.

2101002222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103977 (or 103974 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2101002222222 its reverse (2222222001012), we get a palindrome (4323224223234).

The spelling of 2101002222222 in words is "two trillion, one hundred one billion, two million, two hundred twenty-two thousand, two hundred twenty-two".