111201011010 has 192 divisors, whose sum is σ = 313482124800. Its totient is φ = 27253449216.

The previous prime is 111201011003. The next prime is 111201011023. The reversal of 111201011010 is 10110102111.

It is a super-2 number, since 2×111201011010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111201010983 and 111201011001.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23217696 + ... + 23222484.

It is an arithmetic number, because the mean of its divisors is an integer number (1632719400).

Almost surely, 2^111201011010 is an apocalyptic number.

111201011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111201011010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156741062400).

111201011010 is an abundant number, since it is smaller than the sum of its proper divisors (202281113790).

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

111201011010 is a wasteful number, since it uses less digits than its factorization.

111201011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111201011010 its reverse (10110102111), we get a palindrome (121311113121).

The spelling of 111201011010 in words is "one hundred eleven billion, two hundred one million, eleven thousand, ten".