121220100101003 has 2 divisors, whose sum is σ = 121220100101004. Its totient is φ = 121220100101002.

The previous prime is 121220100100999. The next prime is 121220100101053. The reversal of 121220100101003 is 300101001022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121220100101003 - 2² = 121220100100999 is a prime.

It is not a weakly prime, because it can be changed into another prime (121220100101053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610050050501 + 60610050050502.

It is an arithmetic number, because the mean of its divisors is an integer number (60610050050502).

Almost surely, 2^{121220100101003} is an apocalyptic number.

121220100101003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220100101003 is an equidigital number, since it uses as much as digits as its factorization.

121220100101003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121220100101003 its reverse (300101001022121), we get a palindrome (421321101123124).

The spelling of 121220100101003 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred million, one hundred one thousand, three".