11112211121002 has 16 divisors (see below), whose sum is σ = 17650073341512. Its totient is φ = 5228900282880.

The previous prime is 11112211120993. The next prime is 11112211121069. The reversal of 11112211121002 is 20012111221111.

It can be written as a sum of positive squares in 4 ways, for example, as 9620102453641 + 1492108667361 = 3101629^2 + 1221519^2 .

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, 11254899 + ... + 12202342.

Almost surely, 2^{11112211121002} is an apocalyptic number.

11112211121002 is a deficient number, since it is larger than the sum of its proper divisors (6537862220510).

11112211121002 is a wasteful number, since it uses less digits than its factorization.

11112211121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23471193.

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

Adding to 11112211121002 its reverse (20012111221111), we get a palindrome (31124322342113).

The spelling of 11112211121002 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-one thousand, two".