1000121225351 has 16 divisors (see below), whose sum is σ = 1101697286400. Its totient is φ = 903676422528.

The previous prime is 1000121225293. The next prime is 1000121225353. The reversal of 1000121225351 is 1535221210001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000121225351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121225353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3146066 + ... + 3449343.

It is an arithmetic number, because the mean of its divisors is an integer number (68856080400).

Almost surely, 2^{1000121225351} is an apocalyptic number.

1000121225351 is a deficient number, since it is larger than the sum of its proper divisors (101576061049).

1000121225351 is a wasteful number, since it uses less digits than its factorization.

1000121225351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595798.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 1000121225351 its reverse (1535221210001), we get a palindrome (2535342435352).

The spelling of 1000121225351 in words is "one trillion, one hundred twenty-one million, two hundred twenty-five thousand, three hundred fifty-one".