111020020202121 has 8 divisors (see below), whose sum is σ = 149463845968320. Its totient is φ = 73294770618672.

The previous prime is 111020020202111. The next prime is 111020020202123. The reversal of 111020020202121 is 121202020020111.

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

It is not a de Polignac number, because 111020020202121 - 2⁵ = 111020020202089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111020020202121.

It is not an unprimeable number, because it can be changed into a prime (111020020202123) 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, 179644045326 + ... + 179644045943.

It is an arithmetic number, because the mean of its divisors is an integer number (18682980746040).

Almost surely, 2^{111020020202121} is an apocalyptic number.

It is an amenable number.

111020020202121 is a deficient number, since it is larger than the sum of its proper divisors (38443825766199).

111020020202121 is a wasteful number, since it uses less digits than its factorization.

111020020202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359288091375.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111020020202121 its reverse (121202020020111), we get a palindrome (232222040222232).

The spelling of 111020020202121 in words is "one hundred eleven trillion, twenty billion, twenty million, two hundred two thousand, one hundred twenty-one".