111145558226 has 4 divisors (see below), whose sum is σ = 166718337342. Its totient is φ = 55572779112.

The previous prime is 111145558211. The next prime is 111145558273. The reversal of 111145558226 is 622855541111.

It is a happy number.

It is a Cunningham number, because it is equal to 333385²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622855541111 = 15233 ⋅40888567.

It can be written as a sum of positive squares in only one way, i.e., 111145558225 + 1 = 333385^2 + 1^2 .

It is a super-2 number, since 2×111145558226² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27786389555 + ... + 27786389558.

Almost surely, 2^111145558226 is an apocalyptic number.

111145558226 is a deficient number, since it is larger than the sum of its proper divisors (55572779116).

111145558226 is an equidigital number, since it uses as much as digits as its factorization.

111145558226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55572779115.

The product of its digits is 96000, while the sum is 41.

The spelling of 111145558226 in words is "one hundred eleven billion, one hundred forty-five million, five hundred fifty-eight thousand, two hundred twenty-six".