121010220043 has 2 divisors, whose sum is σ = 121010220044. Its totient is φ = 121010220042.

The previous prime is 121010220017. The next prime is 121010220113. The reversal of 121010220043 is 340022010121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121010220043 - 2¹⁷ = 121010088971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121010219999 and 121010220026.

It is not a weakly prime, because it can be changed into another prime (121010620043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505110021 + 60505110022.

It is an arithmetic number, because the mean of its divisors is an integer number (60505110022).

Almost surely, 2^121010220043 is an apocalyptic number.

121010220043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010220043 is an equidigital number, since it uses as much as digits as its factorization.

121010220043 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 16.

Adding to 121010220043 its reverse (340022010121), we get a palindrome (461032230164).

The spelling of 121010220043 in words is "one hundred twenty-one billion, ten million, two hundred twenty thousand, forty-three".