350002121021 has 8 divisors (see below), whose sum is σ = 408165739200. Its totient is φ = 300001817724.

The previous prime is 350002121009. The next prime is 350002121023. The reversal of 350002121021 is 120121200053.

It is a happy number.

It is not a de Polignac number, because 350002121021 - 2⁶ = 350002120957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350002121023) 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 7 ways as a sum of consecutive naturals, for example, 510206831 + ... + 510207516.

It is an arithmetic number, because the mean of its divisors is an integer number (51020717400).

Almost surely, 2^350002121021 is an apocalyptic number.

It is an amenable number.

350002121021 is a deficient number, since it is larger than the sum of its proper divisors (58163618179).

350002121021 is an equidigital number, since it uses as much as digits as its factorization.

350002121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020414368 (or 1020414354 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 350002121021 its reverse (120121200053), we get a palindrome (470123321074).

The spelling of 350002121021 in words is "three hundred fifty billion, two million, one hundred twenty-one thousand, twenty-one".