1122020012 has 12 divisors (see below), whose sum is σ = 1963808616. Its totient is φ = 560931840.
The previous prime is 1122019973. The next prime is 1122020021. The reversal of 1122020012 is 2100202211.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 1122019975 and 1122020002.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23087 + ... + 52697.
It is an arithmetic number, because the mean of its divisors is an integer number (163650718).
Almost surely, 21122020012 is an apocalyptic number.
It is an amenable number.
1122020012 is a deficient number, since it is larger than the sum of its proper divisors (841788604).
1122020012 is a wasteful number, since it uses less digits than its factorization.
1122020012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39088 (or 39086 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 1122020012 is about 33496.5671673979. The cubic root of 1122020012 is about 1039.1227847061.
Adding to 1122020012 its reverse (2100202211), we get a palindrome (3222222223).
The spelling of 1122020012 in words is "one billion, one hundred twenty-two million, twenty thousand, twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.216 sec. • engine limits •