101111012 has 12 divisors (see below), whose sum is σ = 177120300.
Its totient is φ = 50505216.
The previous prime is 101111011. The next prime is 101111033. The reversal of 101111012 is 210111101.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 86564416 + 14546596 = 9304^2 + 3814^2
It is not an unprimeable number, because it can be changed into a prime (101111011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853 + ... + 16244.
It is an arithmetic number, because the mean of its divisors is an integer number (14760025).
Almost surely, 2101111012 is an apocalyptic number.
It is an amenable number.
101111012 is a deficient number, since it is larger than the sum of its proper divisors (76009288).
101111012 is a wasteful number, since it uses less digits than its factorization.
101111012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25150 (or 25148 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 8.
The square root of 101111012 is about 10055.3971577457.
The cubic root of 101111012 is about 465.8715100690.
Adding to 101111012 its reverse (210111101), we get a palindrome (311222113).
It can be divided in two parts, 10111101 and 2, that multiplied together give a palindrome (20222202).
The spelling of 101111012 in words is "one hundred one million, one hundred eleven thousand, twelve".