20110101011201 has 4 divisors (see below), whose sum is σ = 20114809538304. Its totient is φ = 20105392484100.

The previous prime is 20110101011177. The next prime is 20110101011243. The reversal of 20110101011201 is 10211010101102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20110101011201 - 2¹⁰ = 20110101010177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110101011291) 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, 2354257145 + ... + 2354265686.

It is an arithmetic number, because the mean of its divisors is an integer number (5028702384576).

Almost surely, 2^{20110101011201} is an apocalyptic number.

It is an amenable number.

20110101011201 is a deficient number, since it is larger than the sum of its proper divisors (4708527103).

20110101011201 is an equidigital number, since it uses as much as digits as its factorization.

20110101011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708527102.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20110101011201 its reverse (10211010101102), we get a palindrome (30321111112303).

The spelling of 20110101011201 in words is "twenty trillion, one hundred ten billion, one hundred one million, eleven thousand, two hundred one".