111220010206 has 4 divisors (see below), whose sum is σ = 166830015312. Its totient is φ = 55610005102.

The previous prime is 111220010131. The next prime is 111220010357. The reversal of 111220010206 is 602010022111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602010022111 = 41 ⋅14683171271.

It is a super-3 number, since 3×111220010206³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111220010206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805002550 + ... + 27805002553.

It is an arithmetic number, because the mean of its divisors is an integer number (41707503828).

Almost surely, 2^111220010206 is an apocalyptic number.

111220010206 is a deficient number, since it is larger than the sum of its proper divisors (55610005106).

111220010206 is an equidigital number, since it uses as much as digits as its factorization.

111220010206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610005105.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111220010206 its reverse (602010022111), we get a palindrome (713230032317).

The spelling of 111220010206 in words is "one hundred eleven billion, two hundred twenty million, ten thousand, two hundred six".