12211210122 has 16 divisors (see below), whose sum is σ = 25082486112. Its totient is φ = 3960392400.

The previous prime is 12211210103. The next prime is 12211210181. The reversal of 12211210122 is 22101211221.

It is a super-2 number, since 2×12211210122² (a number of 21 digits) contains 22 as substring.

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, 27502504 + ... + 27502947.

It is an arithmetic number, because the mean of its divisors is an integer number (1567655382).

Almost surely, 2^12211210122 is an apocalyptic number.

12211210122 is an abundant number, since it is smaller than the sum of its proper divisors (12871275990).

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

12211210122 is a wasteful number, since it uses less digits than its factorization.

12211210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55005493.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12211210122 its reverse (22101211221), we get a palindrome (34312421343).

The spelling of 12211210122 in words is "twelve billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-two".