111121212002 has 8 divisors (see below), whose sum is σ = 167527919196. Its totient is φ = 55278572272.

The previous prime is 111121211939. The next prime is 111121212023. The reversal of 111121212002 is 200212121111.

It can be written as a sum of positive squares in 2 ways, for example, as 79044760201 + 32076451801 = 281149^2 + 179099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141016373 + ... + 141017160.

Almost surely, 2^111121212002 is an apocalyptic number.

111121212002 is a deficient number, since it is larger than the sum of its proper divisors (56406707194).

111121212002 is a wasteful number, since it uses less digits than its factorization.

111121212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282033732.

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

Adding to 111121212002 its reverse (200212121111), we get a palindrome (311333333113).

The spelling of 111121212002 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred twelve thousand, two".