2201212221201 has 48 divisors (see below), whose sum is σ = 3821405672448. Its totient is φ = 1240119493200.

The previous prime is 2201212221157. The next prime is 2201212221211. The reversal of 2201212221201 is 1021222121022.

It is a happy number.

2201212221201 is a `hidden beast` number, since 220 + 1 + 21 + 2 + 221 + 201 = 666.

It is not a de Polignac number, because 2201212221201 - 2¹⁰ = 2201212220177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2201212221211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8992395 + ... + 9233936.

It is an arithmetic number, because the mean of its divisors is an integer number (79612618176).

Almost surely, 2^{2201212221201} is an apocalyptic number.

2201212221201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201212221201 is a deficient number, since it is larger than the sum of its proper divisors (1620193451247).

2201212221201 is an equidigital number, since it uses as much as digits as its factorization.

2201212221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18226424 (or 18226412 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2201212221201 its reverse (1021222121022), we get a palindrome (3222434342223).

The spelling of 2201212221201 in words is "two trillion, two hundred one billion, two hundred twelve million, two hundred twenty-one thousand, two hundred one".