111220021030 has 16 divisors (see below), whose sum is σ = 200213524080. Its totient is φ = 44484122592.

The previous prime is 111220021021. The next prime is 111220021049. The reversal of 111220021030 is 30120022111.

It is a self number, because there is not a number n which added to its sum of digits gives 111220021030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364065 + ... + 595804.

It is an arithmetic number, because the mean of its divisors is an integer number (12513345255).

Almost surely, 2^111220021030 is an apocalyptic number.

111220021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220021030 is a deficient number, since it is larger than the sum of its proper divisors (88993503050).

111220021030 is a wasteful number, since it uses less digits than its factorization.

111220021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971463.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 111220021030 its reverse (30120022111), we get a palindrome (141340043141).

The spelling of 111220021030 in words is "one hundred eleven billion, two hundred twenty million, twenty-one thousand, thirty".