111020112021010 has 32 divisors (see below), whose sum is σ = 205206145309872. Its totient is φ = 43229734318080.

The previous prime is 111020112020999. The next prime is 111020112021031. The reversal of 111020112021010 is 10120211020111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 32103522004009 + 78916590017001 = 5665997^2 + 8883501^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938086107 + ... + 938204446.

Almost surely, 2^{111020112021010} is an apocalyptic number.

111020112021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020112021010 is a deficient number, since it is larger than the sum of its proper divisors (94186033288862).

111020112021010 is a wasteful number, since it uses less digits than its factorization.

111020112021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876290718.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111020112021010 its reverse (10120211020111), we get a palindrome (121140323041121).

The spelling of 111020112021010 in words is "one hundred eleven trillion, twenty billion, one hundred twelve million, twenty-one thousand, ten".