2200121220001 has 4 divisors (see below), whose sum is σ = 2206353858372. Its totient is φ = 2193888581632.

The previous prime is 2200121219999. The next prime is 2200121220019. The reversal of 2200121220001 is 1000221210022.

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 832510256400 + 1367610963601 = 912420^2 + 1169449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200121220001 - 2¹ = 2200121219999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2200121220061) 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, 3116318656 + ... + 3116319361.

It is an arithmetic number, because the mean of its divisors is an integer number (551588464593).

Almost surely, 2^{2200121220001} is an apocalyptic number.

It is an amenable number.

2200121220001 is a deficient number, since it is larger than the sum of its proper divisors (6232638371).

2200121220001 is an equidigital number, since it uses as much as digits as its factorization.

2200121220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232638370.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2200121220001 its reverse (1000221210022), we get a palindrome (3200342430023).

The spelling of 2200121220001 in words is "two trillion, two hundred billion, one hundred twenty-one million, two hundred twenty thousand, one".