111001221245 has 16 divisors (see below), whose sum is σ = 135789737472. Its totient is φ = 87077315520.

The previous prime is 111001221223. The next prime is 111001221257. The reversal of 111001221245 is 542122100111.

It is not a de Polignac number, because 111001221245 - 2¹⁰ = 111001220221 is a prime.

It is a super-2 number, since 2×111001221245² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368210 + ... + 597980.

It is an arithmetic number, because the mean of its divisors is an integer number (8486858592).

Almost surely, 2^111001221245 is an apocalyptic number.

It is an amenable number.

111001221245 is a deficient number, since it is larger than the sum of its proper divisors (24788516227).

111001221245 is a wasteful number, since it uses less digits than its factorization.

111001221245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231652.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 111001221245 its reverse (542122100111), we get a palindrome (653123321356).

The spelling of 111001221245 in words is "one hundred eleven billion, one million, two hundred twenty-one thousand, two hundred forty-five".