2221100423 has 2 divisors, whose sum is σ = 2221100424. Its totient is φ = 2221100422.

The previous prime is 2221100419. The next prime is 2221100449. The reversal of 2221100423 is 3240011222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221100423 - 2² = 2221100419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221100023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110550211 + 1110550212.

It is an arithmetic number, because the mean of its divisors is an integer number (1110550212).

Almost surely, 2^2221100423 is an apocalyptic number.

2221100423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221100423 is an equidigital number, since it uses as much as digits as its factorization.

2221100423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2221100423 is about 47128.5520995500. The cubic root of 2221100423 is about 1304.7362586560.

Adding to 2221100423 its reverse (3240011222), we get a palindrome (5461111645).

The spelling of 2221100423 in words is "two billion, two hundred twenty-one million, one hundred thousand, four hundred twenty-three".