121211212003 has 8 divisors (see below), whose sum is σ = 138573970272. Its totient is φ = 103860171456.

The previous prime is 121211211997. The next prime is 121211212051. The reversal of 121211212003 is 300212112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121211212003 - 2⁹ = 121211211491 is a prime.

It is a super-2 number, since 2×121211212003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121211212093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907250 + ... + 2948647.

It is an arithmetic number, because the mean of its divisors is an integer number (17321746284).

Almost surely, 2^121211212003 is an apocalyptic number.

121211212003 is a deficient number, since it is larger than the sum of its proper divisors (17362758269).

121211212003 is an equidigital number, since it uses as much as digits as its factorization.

121211212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858861.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121211212003 its reverse (300212112121), we get a palindrome (421423324124).

The spelling of 121211212003 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred twelve thousand, three".