350725120621 has 16 divisors (see below), whose sum is σ = 358298085376. Its totient is φ = 343250804736.

The previous prime is 350725120619. The next prime is 350725120643. The reversal of 350725120621 is 126021527053.

It is a cyclic number.

It is not a de Polignac number, because 350725120621 - 2¹ = 350725120619 is a prime.

It is a super-2 number, since 2×350725120621² (a number of 24 digits) contains 22 as substring.

It is the 592221-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350725120121) by changing a digit.

It is a nontrivial repunit in base 592220.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3735565 + ... + 3828301.

It is an arithmetic number, because the mean of its divisors is an integer number (22393630336).

Almost surely, 2^350725120621 is an apocalyptic number.

It is an amenable number.

350725120621 is a deficient number, since it is larger than the sum of its proper divisors (7572964755).

350725120621 is a wasteful number, since it uses less digits than its factorization.

350725120621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93268.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 350725120621 its reverse (126021527053), we get a palindrome (476746647674).

The spelling of 350725120621 in words is "three hundred fifty billion, seven hundred twenty-five million, one hundred twenty thousand, six hundred twenty-one".