12121001001122 has 16 divisors (see below), whose sum is σ = 19580193900792. Its totient is φ = 5594275194240.

The previous prime is 12121001001107. The next prime is 12121001001143. The reversal of 12121001001122 is 22110010012121.

It can be written as a sum of positive squares in 4 ways, for example, as 10566263835241 + 1554737165881 = 3250579^2 + 1246891^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12121001001097 and 12121001001106.

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, 3443222 + ... + 6008142.

Almost surely, 2^{12121001001122} is an apocalyptic number.

12121001001122 is a deficient number, since it is larger than the sum of its proper divisors (7459192899670).

12121001001122 is a wasteful number, since it uses less digits than its factorization.

12121001001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746693.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121001001122 its reverse (22110010012121), we get a palindrome (34231011013243).

The spelling of 12121001001122 in words is "twelve trillion, one hundred twenty-one billion, one million, one thousand, one hundred twenty-two".