2201212012201 has 4 divisors (see below), whose sum is σ = 2242744314372. Its totient is φ = 2159679710032.

The previous prime is 2201212012171. The next prime is 2201212012213. The reversal of 2201212012201 is 1022102121022.

It is a happy number.

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 2024143580176 + 177068432025 = 1422724^2 + 420795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201212012201 - 2⁷ = 2201212012073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201212012501) 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, 20766151006 + ... + 20766151111.

It is an arithmetic number, because the mean of its divisors is an integer number (560686078593).

Almost surely, 2^{2201212012201} is an apocalyptic number.

It is an amenable number.

2201212012201 is a deficient number, since it is larger than the sum of its proper divisors (41532302171).

2201212012201 is an equidigital number, since it uses as much as digits as its factorization.

2201212012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41532302170.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2201212012201 its reverse (1022102121022), we get a palindrome (3223314133223).

It can be divided in two parts, 220121 and 2012201, that added together give a palindrome (2232322).

The spelling of 2201212012201 in words is "two trillion, two hundred one billion, two hundred twelve million, twelve thousand, two hundred one".