111212202141 has 12 divisors (see below), whose sum is σ = 164981465532. Its totient is φ = 72137644416.

The previous prime is 111212202119. The next prime is 111212202173. The reversal of 111212202141 is 141202212111.

111212202141 is a `hidden beast` number, since 111 + 212 + 202 + 141 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91210040100 + 20002162041 = 302010^2 + 141429^2 .

It is not a de Polignac number, because 111212202141 - 2⁶ = 111212202077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212202191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166984956 + ... + 166985621.

It is an arithmetic number, because the mean of its divisors is an integer number (13748455461).

Almost surely, 2^111212202141 is an apocalyptic number.

It is an amenable number.

111212202141 is a deficient number, since it is larger than the sum of its proper divisors (53769263391).

111212202141 is a wasteful number, since it uses less digits than its factorization.

111212202141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333970620 (or 333970617 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111212202141 its reverse (141202212111), we get a palindrome (252414414252).

The spelling of 111212202141 in words is "one hundred eleven billion, two hundred twelve million, two hundred two thousand, one hundred forty-one".