111122202021121 has 8 divisors (see below), whose sum is σ = 111765172982400. Its totient is φ = 110479477466160.

The previous prime is 111122202021119. The next prime is 111122202021133. The reversal of 111122202021121 is 121120202221111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111122202021121 - 2¹ = 111122202021119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111122202021191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60696990 + ... + 62500951.

It is an arithmetic number, because the mean of its divisors is an integer number (13970646622800).

Almost surely, 2^{111122202021121} is an apocalyptic number.

It is an amenable number.

111122202021121 is a deficient number, since it is larger than the sum of its proper divisors (642970961279).

111122202021121 is a wasteful number, since it uses less digits than its factorization.

111122202021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123203159.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111122202021121 its reverse (121120202221111), we get a palindrome (232242404242232).

The spelling of 111122202021121 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred two million, twenty-one thousand, one hundred twenty-one".