111021120002 has 16 divisors (see below), whose sum is σ = 179424890232. Its totient is φ = 51216779520.

The previous prime is 111021119999. The next prime is 111021120011. The reversal of 111021120002 is 200021120111.

It can be written as a sum of positive squares in 4 ways, for example, as 86965420201 + 24055699801 = 294899^2 + 155099^2 .

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, 931793 + ... + 1044164.

Almost surely, 2^111021120002 is an apocalyptic number.

111021120002 is a deficient number, since it is larger than the sum of its proper divisors (68403770230).

111021120002 is a wasteful number, since it uses less digits than its factorization.

111021120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978133.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111021120002 its reverse (200021120111), we get a palindrome (311042240113).

The spelling of 111021120002 in words is "one hundred eleven billion, twenty-one million, one hundred twenty thousand, two".