111203130221 has 8 divisors (see below), whose sum is σ = 112124081664. Its totient is φ = 110284606800.

The previous prime is 111203130211. The next prime is 111203130277. The reversal of 111203130221 is 122031302111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203130221 is a prime.

It is a super-2 number, since 2×111203130221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111203130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111203130211) 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, 514970 + ... + 698283.

It is an arithmetic number, because the mean of its divisors is an integer number (14015510208).

Almost surely, 2^111203130221 is an apocalyptic number.

It is an amenable number.

111203130221 is a deficient number, since it is larger than the sum of its proper divisors (920951443).

111203130221 is a wasteful number, since it uses less digits than its factorization.

111203130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214011.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111203130221 its reverse (122031302111), we get a palindrome (233234432332).

The spelling of 111203130221 in words is "one hundred eleven billion, two hundred three million, one hundred thirty thousand, two hundred twenty-one".