2111222010 has 64 divisors (see below), whose sum is σ = 5394864384. Its totient is φ = 526924800.

The previous prime is 2111221969. The next prime is 2111222023. The reversal of 2111222010 is 102221112.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80875 + ... + 103745.

It is an arithmetic number, because the mean of its divisors is an integer number (84294756).

Almost surely, 2^2111222010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111222010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2697432192).

2111222010 is an abundant number, since it is smaller than the sum of its proper divisors (3283642374).

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

2111222010 is a wasteful number, since it uses less digits than its factorization.

2111222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23079.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2111222010 is about 45948.0359754364. The cubic root of 2111222010 is about 1282.8561729007.

Adding to 2111222010 its reverse (102221112), we get a palindrome (2213443122).

It can be divided in two parts, 211 and 1222010, that added together give a palindrome (1222221).

The spelling of 2111222010 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand, ten".