12121001122 has 16 divisors (see below), whose sum is σ = 19263976632. Its totient is φ = 5700156160.

The previous prime is 12121001119. The next prime is 12121001129. The reversal of 12121001122 is 22110012121.

It can be written as a sum of positive squares in 4 ways, for example, as 10158422521 + 1962578601 = 100789^2 + 44301^2 .

It is not an unprimeable number, because it can be changed into a prime (12121001129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68629 + ... + 170152.

Almost surely, 2^12121001122 is an apocalyptic number.

12121001122 is a deficient number, since it is larger than the sum of its proper divisors (7142975510).

12121001122 is a wasteful number, since it uses less digits than its factorization.

12121001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240293.

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

Adding to 12121001122 its reverse (22110012121), we get a palindrome (34231013243).

The spelling of 12121001122 in words is "twelve billion, one hundred twenty-one million, one thousand, one hundred twenty-two".