20210212120003 has 24 divisors (see below), whose sum is σ = 23378199447600. Its totient is φ = 17398862949888.

The previous prime is 20210212119971. The next prime is 20210212120031. The reversal of 20210212120003 is 30002121201202.

It is a happy number.

It is not a de Polignac number, because 20210212120003 - 2⁵ = 20210212119971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210212120603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63299500 + ... + 63617977.

It is an arithmetic number, because the mean of its divisors is an integer number (974091643650).

Almost surely, 2^{20210212120003} is an apocalyptic number.

20210212120003 is a deficient number, since it is larger than the sum of its proper divisors (3167987327597).

20210212120003 is a wasteful number, since it uses less digits than its factorization.

20210212120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126917559 (or 126917542 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20210212120003 its reverse (30002121201202), we get a palindrome (50212333321205).

The spelling of 20210212120003 in words is "twenty trillion, two hundred ten billion, two hundred twelve million, one hundred twenty thousand, three".