20110201221201 has 16 divisors (see below), whose sum is σ = 33001355850624. Its totient is φ = 10607578665984.

The previous prime is 20110201221163. The next prime is 20110201221203. The reversal of 20110201221201 is 10212210201102.

It is not a de Polignac number, because 20110201221201 - 2¹³ = 20110201213009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110201221203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36831870096 + ... + 36831870641.

It is an arithmetic number, because the mean of its divisors is an integer number (2062584740664).

Almost surely, 2^{20110201221201} is an apocalyptic number.

20110201221201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20110201221201 is a deficient number, since it is larger than the sum of its proper divisors (12891154629423).

20110201221201 is a wasteful number, since it uses less digits than its factorization.

20110201221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73663740760.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110201221201 its reverse (10212210201102), we get a palindrome (30322411422303).

The spelling of 20110201221201 in words is "twenty trillion, one hundred ten billion, two hundred one million, two hundred twenty-one thousand, two hundred one".