3500663212421 has 8 divisors (see below), whose sum is σ = 3554976480384. Its totient is φ = 3446410667040.

The previous prime is 3500663212391. The next prime is 3500663212471. The reversal of 3500663212421 is 1242123660053.

3500663212421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3500663212421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500663212471) 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, 15064445 + ... + 15295058.

It is an arithmetic number, because the mean of its divisors is an integer number (444372060048).

Almost surely, 2^{3500663212421} is an apocalyptic number.

It is an amenable number.

3500663212421 is a deficient number, since it is larger than the sum of its proper divisors (54313267963).

3500663212421 is a wasteful number, since it uses less digits than its factorization.

3500663212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30361291.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 3500663212421 its reverse (1242123660053), we get a palindrome (4742786872474).

The spelling of 3500663212421 in words is "three trillion, five hundred billion, six hundred sixty-three million, two hundred twelve thousand, four hundred twenty-one".