2211121103623 has 2 divisors, whose sum is σ = 2211121103624. Its totient is φ = 2211121103622.

The previous prime is 2211121103557. The next prime is 2211121103627. The reversal of 2211121103623 is 3263011211122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211121103623 is a prime.

It is a super-2 number, since 2×2211121103623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211121103627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105560551811 + 1105560551812.

It is an arithmetic number, because the mean of its divisors is an integer number (1105560551812).

Almost surely, 2^{2211121103623} is an apocalyptic number.

2211121103623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211121103623 is an equidigital number, since it uses as much as digits as its factorization.

2211121103623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 2211121103623 its reverse (3263011211122), we get a palindrome (5474132314745).

The spelling of 2211121103623 in words is "two trillion, two hundred eleven billion, one hundred twenty-one million, one hundred three thousand, six hundred twenty-three".