111122210002 has 4 divisors (see below), whose sum is σ = 166683315006. Its totient is φ = 55561105000.

The previous prime is 111122209997. The next prime is 111122210009. The reversal of 111122210002 is 200012221111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200012221111 = 1361 ⋅146959751.

It can be written as a sum of positive squares in only one way, i.e., 69929042481 + 41193167521 = 264441^2 + 202961^2 .

It is not an unprimeable number, because it can be changed into a prime (111122210009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780552499 + ... + 27780552502.

Almost surely, 2^111122210002 is an apocalyptic number.

111122210002 is a deficient number, since it is larger than the sum of its proper divisors (55561105004).

111122210002 is an equidigital number, since it uses as much as digits as its factorization.

111122210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55561105003.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111122210002 its reverse (200012221111), we get a palindrome (311134431113).

The spelling of 111122210002 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, two".