121210210010003 has 4 divisors (see below), whose sum is σ = 121210337487120. Its totient is φ = 121210082532888.

The previous prime is 121210210009981. The next prime is 121210210010023. The reversal of 121210210010003 is 300010012012121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121210210010003 - 2⁴⁴ = 103618023965587 is a prime.

It is a super-2 number, since 2×121210210010003² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121210210010003.

It is not an unprimeable number, because it can be changed into a prime (121210210010023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62301500 + ... + 64217577.

It is an arithmetic number, because the mean of its divisors is an integer number (30302584371780).

Almost surely, 2^{121210210010003} is an apocalyptic number.

121210210010003 is a deficient number, since it is larger than the sum of its proper divisors (127477117).

121210210010003 is an equidigital number, since it uses as much as digits as its factorization.

121210210010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127477116.

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

Adding to 121210210010003 its reverse (300010012012121), we get a palindrome (421220222022124).

The spelling of 121210210010003 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred ten million, ten thousand, three".