351011005221401 has 4 divisors (see below), whose sum is σ = 401155434538752. Its totient is φ = 300866575904052.

The previous prime is 351011005221377. The next prime is 351011005221407. The reversal of 351011005221401 is 104122500110153.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351011005221401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351011005221407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25072214658665 + ... + 25072214658678.

It is an arithmetic number, because the mean of its divisors is an integer number (100288858634688).

Almost surely, 2^{351011005221401} is an apocalyptic number.

It is an amenable number.

351011005221401 is a deficient number, since it is larger than the sum of its proper divisors (50144429317351).

351011005221401 is an equidigital number, since it uses as much as digits as its factorization.

351011005221401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50144429317350.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 351011005221401 its reverse (104122500110153), we get a palindrome (455133505331554).

The spelling of 351011005221401 in words is "three hundred fifty-one trillion, eleven billion, five million, two hundred twenty-one thousand, four hundred one".