501220110100102 has 4 divisors (see below), whose sum is σ = 751830165150156. Its totient is φ = 250610055050050.

The previous prime is 501220110100013. The next prime is 501220110100103. The reversal of 501220110100102 is 201001011022105.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×501220110100102⁴ (a number of 60 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501220110100103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125305027525024 + ... + 125305027525027.

It is an arithmetic number, because the mean of its divisors is an integer number (187957541287539).

Almost surely, 2^{501220110100102} is an apocalyptic number.

501220110100102 is a deficient number, since it is larger than the sum of its proper divisors (250610055050054).

501220110100102 is a wasteful number, since it uses less digits than its factorization.

501220110100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250610055050053.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 501220110100102 its reverse (201001011022105), we get a palindrome (702221121122207).

The spelling of 501220110100102 in words is "five hundred one trillion, two hundred twenty billion, one hundred ten million, one hundred thousand, one hundred two".