220211212012201 has 4 divisors (see below), whose sum is σ = 220211462225092. Its totient is φ = 220210961799312.

The previous prime is 220211212012193. The next prime is 220211212012213. The reversal of 220211212012201 is 102210212112022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 150799652562601 + 69411559449600 = 12280051^2 + 8331360^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211212012201 - 2³ = 220211212012193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220211212412201) 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, 123781626 + ... + 125548051.

It is an arithmetic number, because the mean of its divisors is an integer number (55052865556273).

Almost surely, 2^{220211212012201} is an apocalyptic number.

It is an amenable number.

220211212012201 is a deficient number, since it is larger than the sum of its proper divisors (250212891).

220211212012201 is an equidigital number, since it uses as much as digits as its factorization.

220211212012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250212890.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220211212012201 its reverse (102210212112022), we get a palindrome (322421424124223).

The spelling of 220211212012201 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twelve million, twelve thousand, two hundred one".