2121222021103 has 2 divisors, whose sum is σ = 2121222021104. Its totient is φ = 2121222021102.

The previous prime is 2121222021043. The next prime is 2121222021137. The reversal of 2121222021103 is 3011202221212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121222021103 - 2¹³ = 2121222012911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121222027103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060611010551 + 1060611010552.

It is an arithmetic number, because the mean of its divisors is an integer number (1060611010552).

Almost surely, 2^{2121222021103} is an apocalyptic number.

2121222021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121222021103 is an equidigital number, since it uses as much as digits as its factorization.

2121222021103 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 19.

Adding to 2121222021103 its reverse (3011202221212), we get a palindrome (5132424242315).

The spelling of 2121222021103 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, one hundred three".