501112201211010 has 192 divisors, whose sum is σ = 1397341119043584. Its totient is φ = 124155804364800.

The previous prime is 501112201211009. The next prime is 501112201211059. The reversal of 501112201211010 is 10112102211105.

It is a happy number.

501112201211010 is a `hidden beast` number, since 501 + 1 + 1 + 2 + 20 + 121 + 10 + 10 = 666.

It is a super-2 number, since 2×501112201211010² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 31737142 + ... + 44827118.

It is an arithmetic number, because the mean of its divisors is an integer number (7277818328352).

Almost surely, 2^{501112201211010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501112201211010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698670559521792).

501112201211010 is an abundant number, since it is smaller than the sum of its proper divisors (896228917832574).

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

501112201211010 is a wasteful number, since it uses less digits than its factorization.

501112201211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13090329 (or 13090326 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 501112201211010 its reverse (10112102211105), we get a palindrome (511224303422115).

The spelling of 501112201211010 in words is "five hundred one trillion, one hundred twelve billion, two hundred one million, two hundred eleven thousand, ten".