10212021212403 has 16 divisors (see below), whose sum is σ = 13628713363200. Its totient is φ = 6801672049056.

The previous prime is 10212021212399. The next prime is 10212021212461. The reversal of 10212021212403 is 30421212021201.

It is a happy number.

It is not a de Polignac number, because 10212021212403 - 2² = 10212021212399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212021212403.

It is not an unprimeable number, because it can be changed into a prime (10212021210403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171028648 + ... + 171088346.

It is an arithmetic number, because the mean of its divisors is an integer number (851794585200).

Almost surely, 2^{10212021212403} is an apocalyptic number.

10212021212403 is a deficient number, since it is larger than the sum of its proper divisors (3416692150797).

10212021212403 is a wasteful number, since it uses less digits than its factorization.

10212021212403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111866.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10212021212403 its reverse (30421212021201), we get a palindrome (40633233233604).

The spelling of 10212021212403 in words is "ten trillion, two hundred twelve billion, twenty-one million, two hundred twelve thousand, four hundred three".