2201200222021 has 2 divisors, whose sum is σ = 2201200222022. Its totient is φ = 2201200222020.

The previous prime is 2201200222009. The next prime is 2201200222069. The reversal of 2201200222021 is 1202220021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1984520212900 + 216680009121 = 1408730^2 + 465489^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201200222021 - 2⁵ = 2201200221989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201200221986 and 2201200222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201200292021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100600111010 + 1100600111011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100600111011).

Almost surely, 2^{2201200222021} is an apocalyptic number.

It is an amenable number.

2201200222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201200222021 is an equidigital number, since it uses as much as digits as its factorization.

2201200222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2201200222021 its reverse (1202220021022), we get a palindrome (3403420243043).

The spelling of 2201200222021 in words is "two trillion, two hundred one billion, two hundred million, two hundred twenty-two thousand, twenty-one".