111021120130 has 16 divisors (see below), whose sum is σ = 200575430784. Its totient is φ = 44244578160.

The previous prime is 111021120127. The next prime is 111021120149. The reversal of 111021120130 is 31021120111.

It is a happy number.

It is a super-2 number, since 2×111021120130² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111021120130.

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, 20480892 + ... + 20486311.

It is an arithmetic number, because the mean of its divisors is an integer number (12535964424).

Almost surely, 2^111021120130 is an apocalyptic number.

111021120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021120130 is a deficient number, since it is larger than the sum of its proper divisors (89554310654).

111021120130 is a wasteful number, since it uses less digits than its factorization.

111021120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40967481.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111021120130 its reverse (31021120111), we get a palindrome (142042240241).

The spelling of 111021120130 in words is "one hundred eleven billion, twenty-one million, one hundred twenty thousand, one hundred thirty".