22121011121203 has 2 divisors, whose sum is σ = 22121011121204. Its totient is φ = 22121011121202.

The previous prime is 22121011121081. The next prime is 22121011121213. The reversal of 22121011121203 is 30212111012122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121011121203 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121011121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060505560601 + 11060505560602.

It is an arithmetic number, because the mean of its divisors is an integer number (11060505560602).

Almost surely, 2^{22121011121203} is an apocalyptic number.

22121011121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121011121203 is an equidigital number, since it uses as much as digits as its factorization.

22121011121203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 22121011121203 its reverse (30212111012122), we get a palindrome (52333122133325).

The spelling of 22121011121203 in words is "twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred twenty-one thousand, two hundred three".