2201212221001 has 8 divisors (see below), whose sum is σ = 2214460289664. Its totient is φ = 2187964952160.

The previous prime is 2201212220959. The next prime is 2201212221031. The reversal of 2201212221001 is 1001222121022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201212221001 - 2⁷ = 2201212220873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201212221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5874181 + ... + 6237661.

It is an arithmetic number, because the mean of its divisors is an integer number (276807536208).

Almost surely, 2^{2201212221001} is an apocalyptic number.

It is an amenable number.

2201212221001 is a deficient number, since it is larger than the sum of its proper divisors (13248068663).

2201212221001 is a wasteful number, since it uses less digits than its factorization.

2201212221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399911.

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

Adding to 2201212221001 its reverse (1001222121022), we get a palindrome (3202434342023).

The spelling of 2201212221001 in words is "two trillion, two hundred one billion, two hundred twelve million, two hundred twenty-one thousand, one".