11012120121002 has 64 divisors (see below), whose sum is σ = 22509274927104. Its totient is φ = 3901292303040.

The previous prime is 11012120120993. The next prime is 11012120121007. The reversal of 11012120121002 is 20012102121011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (11012120121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40914818 + ... + 41183085.

It is an arithmetic number, because the mean of its divisors is an integer number (351707420736).

Almost surely, 2^{11012120121002} is an apocalyptic number.

11012120121002 is an abundant number, since it is smaller than the sum of its proper divisors (11497154806102).

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

11012120121002 is a wasteful number, since it uses less digits than its factorization.

11012120121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82098003.

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

Adding to 11012120121002 its reverse (20012102121011), we get a palindrome (31024222242013).

Subtracting 11012120121002 from its reverse (20012102121011), we obtain a square (8999982000009 = 2999997²).

The spelling of 11012120121002 in words is "eleven trillion, twelve billion, one hundred twenty million, one hundred twenty-one thousand, two".