111221121202 has 8 divisors (see below), whose sum is σ = 166962124800. Its totient is φ = 55567079604.

The previous prime is 111221121169. The next prime is 111221121203. The reversal of 111221121202 is 202121122111.

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

It is not an unprimeable number, because it can be changed into a prime (111221121203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21737302 + ... + 21742417.

It is an arithmetic number, because the mean of its divisors is an integer number (20870265600).

Almost surely, 2^111221121202 is an apocalyptic number.

111221121202 is a deficient number, since it is larger than the sum of its proper divisors (55741003598).

111221121202 is a wasteful number, since it uses less digits than its factorization.

111221121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43481000.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111221121202 its reverse (202121122111), we get a palindrome (313342243313).

Subtracting 111221121202 from its reverse (202121122111), we obtain a palindrome (90900000909).

The spelling of 111221121202 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred two".