1212021003303 has 80 divisors (see below), whose sum is σ = 2066333068800. Its totient is φ = 700810038720.

The previous prime is 1212021003283. The next prime is 1212021003341. The reversal of 1212021003303 is 3033001202121.

1212021003303 is a `hidden beast` number, since 1 + 2 + 120 + 210 + 0 + 330 + 3 = 666.

It is not a de Polignac number, because 1212021003303 - 2¹⁰ = 1212021002279 is a prime.

It is a super-2 number, since 2×1212021003303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021003383) 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 in 79 ways as a sum of consecutive naturals, for example, 7895758 + ... + 8047796.

It is an arithmetic number, because the mean of its divisors is an integer number (25829163360).

Almost surely, 2^{1212021003303} is an apocalyptic number.

1212021003303 is a deficient number, since it is larger than the sum of its proper divisors (854312065497).

1212021003303 is a wasteful number, since it uses less digits than its factorization.

1212021003303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152474 (or 152465 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1212021003303 its reverse (3033001202121), we get a palindrome (4245022205424).

The spelling of 1212021003303 in words is "one trillion, two hundred twelve billion, twenty-one million, three thousand, three hundred three".