2101222442444 has 12 divisors (see below), whose sum is σ = 3723685341600. Its totient is φ = 1037312344848.

The previous prime is 2101222442413. The next prime is 2101222442483. The reversal of 2101222442444 is 4442442221012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101222442444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3324718739 + ... + 3324719370.

It is an arithmetic number, because the mean of its divisors is an integer number (310307111800).

Almost surely, 2^{2101222442444} is an apocalyptic number.

It is an amenable number.

2101222442444 is a deficient number, since it is larger than the sum of its proper divisors (1622462899156).

2101222442444 is a wasteful number, since it uses less digits than its factorization.

2101222442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649438192 (or 6649438190 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 2101222442444 its reverse (4442442221012), we get a palindrome (6543664663456).

The spelling of 2101222442444 in words is "two trillion, one hundred one billion, two hundred twenty-two million, four hundred forty-two thousand, four hundred forty-four".