12100221122 has 16 divisors (see below), whose sum is σ = 19802057472. Its totient is φ = 5499629520.

The previous prime is 12100221101. The next prime is 12100221173. The reversal of 12100221122 is 22112200121.

It is a junction number, because it is equal to n+sod(n) for n = 12100221097 and 12100221106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458108 + ... + 483800.

It is an arithmetic number, because the mean of its divisors is an integer number (1237628592).

Almost surely, 2^12100221122 is an apocalyptic number.

12100221122 is a deficient number, since it is larger than the sum of its proper divisors (7701836350).

12100221122 is a wasteful number, since it uses less digits than its factorization.

12100221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47113.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12100221122 its reverse (22112200121), we get a palindrome (34212421243).

The spelling of 12100221122 in words is "twelve billion, one hundred million, two hundred twenty-one thousand, one hundred twenty-two".