111122110121010 has 64 divisors (see below), whose sum is σ = 275110829529984. Its totient is φ = 28711756339200.

The previous prime is 111122110120877. The next prime is 111122110121021. The reversal of 111122110121010 is 10121011221111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453030111 + ... + 453275330.

It is an arithmetic number, because the mean of its divisors is an integer number (4298606711406).

Almost surely, 2^{111122110121010} is an apocalyptic number.

111122110121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111122110121010 is an abundant number, since it is smaller than the sum of its proper divisors (163988719408974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111122110121010 is a wasteful number, since it uses less digits than its factorization.

111122110121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906305579.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111122110121010 its reverse (10121011221111), we get a palindrome (121243121342121).

The spelling of 111122110121010 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, ten".