12211100122 has 32 divisors (see below), whose sum is σ = 20450102400. Its totient is φ = 5429742528.

The previous prime is 12211100009. The next prime is 12211100147. The reversal of 12211100122 is 22100111221.

It is a super-2 number, since 2×12211100122² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334779 + ... + 369457.

It is an arithmetic number, because the mean of its divisors is an integer number (639065700).

Almost surely, 2^12211100122 is an apocalyptic number.

12211100122 is a deficient number, since it is larger than the sum of its proper divisors (8239002278).

12211100122 is a wasteful number, since it uses less digits than its factorization.

12211100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35190.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211100122 its reverse (22100111221), we get a palindrome (34311211343).

The spelling of 12211100122 in words is "twelve billion, two hundred eleven million, one hundred thousand, one hundred twenty-two".