11001021012122 has 32 divisors (see below), whose sum is σ = 17530781562000. Its totient is φ = 5159610897408.

The previous prime is 11001021012097. The next prime is 11001021012133. The reversal of 11001021012122 is 22121012010011.

It can be written as a sum of positive squares in 8 ways, for example, as 8498047049881 + 2502973962241 = 2915141^2 + 1582079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11001021012097 and 11001021012106.

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, 24326708 + ... + 24774800.

Almost surely, 2^{11001021012122} is an apocalyptic number.

11001021012122 is a deficient number, since it is larger than the sum of its proper divisors (6529760549878).

11001021012122 is a wasteful number, since it uses less digits than its factorization.

11001021012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450530.

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

Adding to 11001021012122 its reverse (22121012010011), we get a palindrome (33122033022133).

The spelling of 11001021012122 in words is "eleven trillion, one billion, twenty-one million, twelve thousand, one hundred twenty-two".