1212211003 has 8 divisors (see below), whose sum is σ = 1224116496. Its totient is φ = 1200326400.

The previous prime is 1212210953. The next prime is 1212211009. The reversal of 1212211003 is 3001122121.

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 1212211003 - 2⁹ = 1212210491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212211009) 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, 127743 + ... + 136903.

It is an arithmetic number, because the mean of its divisors is an integer number (153014562).

Almost surely, 2^1212211003 is an apocalyptic number.

1212211003 is a deficient number, since it is larger than the sum of its proper divisors (11905493).

1212211003 is a wasteful number, since it uses less digits than its factorization.

1212211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10445.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1212211003 is about 34816.8206905800. The cubic root of 1212211003 is about 1066.2508913525.

Adding to 1212211003 its reverse (3001122121), we get a palindrome (4213333124).

The spelling of 1212211003 in words is "one billion, two hundred twelve million, two hundred eleven thousand, three".