1021212003 has 48 divisors (see below), whose sum is σ = 1643556096. Its totient is φ = 552289920.

The previous prime is 1021211977. The next prime is 1021212007. The reversal of 1021212003 is 3002121201.

It is not a de Polignac number, because 1021212003 - 2⁹ = 1021211491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 935488 + ... + 936578.

It is an arithmetic number, because the mean of its divisors is an integer number (34240752).

Almost surely, 2^1021212003 is an apocalyptic number.

1021212003 is a deficient number, since it is larger than the sum of its proper divisors (622344093).

1021212003 is a wasteful number, since it uses less digits than its factorization.

1021212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1021212003 is about 31956.4078550766. The cubic root of 1021212003 is about 1007.0212542771.

Adding to 1021212003 its reverse (3002121201), we get a palindrome (4023333204).

The spelling of 1021212003 in words is "one billion, twenty-one million, two hundred twelve thousand, three".