2243200222121 has 2 divisors, whose sum is σ = 2243200222122. Its totient is φ = 2243200222120.

The previous prime is 2243200222111. The next prime is 2243200222157. The reversal of 2243200222121 is 1212220023422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1889099058025 + 354101164096 = 1374445^2 + 595064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243200222121 - 2⁶ = 2243200222057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243200222111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121600111060 + 1121600111061.

It is an arithmetic number, because the mean of its divisors is an integer number (1121600111061).

Almost surely, 2^{2243200222121} is an apocalyptic number.

It is an amenable number.

2243200222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243200222121 is an equidigital number, since it uses as much as digits as its factorization.

2243200222121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2243200222121 its reverse (1212220023422), we get a palindrome (3455420245543).

The spelling of 2243200222121 in words is "two trillion, two hundred forty-three billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-one".