111121211002 has 8 divisors (see below), whose sum is σ = 166700653812. Its totient is φ = 55554326400.

The previous prime is 111121210973. The next prime is 111121211011. The reversal of 111121211002 is 200112121111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62116091361 + 49005119641 = 249231^2 + 221371^2 .

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, 3117399 + ... + 3152842.

Almost surely, 2^111121211002 is an apocalyptic number.

111121211002 is a deficient number, since it is larger than the sum of its proper divisors (55579442810).

111121211002 is an equidigital number, since it uses as much as digits as its factorization.

111121211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279104.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111121211002 its reverse (200112121111), we get a palindrome (311233332113).

The spelling of 111121211002 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand, two".