73201221201011 has 4 divisors (see below), whose sum is σ = 73584473668224. Its totient is φ = 72817968733800.

The previous prime is 73201221200953. The next prime is 73201221201041. The reversal of 73201221201011 is 11010212210237.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73201221201011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73201221201041) 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, 191626233320 + ... + 191626233701.

It is an arithmetic number, because the mean of its divisors is an integer number (18396118417056).

Almost surely, 2^{73201221201011} is an apocalyptic number.

73201221201011 is a deficient number, since it is larger than the sum of its proper divisors (383252467213).

73201221201011 is a wasteful number, since it uses less digits than its factorization.

73201221201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383252467212.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 73201221201011 its reverse (11010212210237), we get a palindrome (84211433411248).

The spelling of 73201221201011 in words is "seventy-three trillion, two hundred one billion, two hundred twenty-one million, two hundred one thousand, eleven".