2102100222 has 16 divisors (see below), whose sum is σ = 4204760832. Its totient is φ = 700606680.

The previous prime is 2102100191. The next prime is 2102100229. The reversal of 2102100222 is 2220012012.

It is a junction number, because it is equal to n+sod(n) for n = 2102100198 and 2102100207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102100229) 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, 37693 + ... + 74999.

It is an arithmetic number, because the mean of its divisors is an integer number (262797552).

Almost surely, 2^2102100222 is an apocalyptic number.

2102100222 is an abundant number, since it is smaller than the sum of its proper divisors (2102660610).

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

2102100222 is a wasteful number, since it uses less digits than its factorization.

2102100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46703.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2102100222 is about 45848.6665236842. Note that the first 3 decimals coincide. The cubic root of 2102100222 is about 1281.0059275967.

Adding to 2102100222 its reverse (2220012012), we get a palindrome (4322112234).

The spelling of 2102100222 in words is "two billion, one hundred two million, one hundred thousand, two hundred twenty-two".