1022151030251 has 4 divisors (see below), whose sum is σ = 1100778032592. Its totient is φ = 943524027912.

The previous prime is 1022151030233. The next prime is 1022151030283. The reversal of 1022151030251 is 1520301512201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022151030251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022151036251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39313501151 + ... + 39313501176.

It is an arithmetic number, because the mean of its divisors is an integer number (275194508148).

Almost surely, 2^{1022151030251} is an apocalyptic number.

1022151030251 is a deficient number, since it is larger than the sum of its proper divisors (78627002341).

1022151030251 is an equidigital number, since it uses as much as digits as its factorization.

1022151030251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78627002340.

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

Adding to 1022151030251 its reverse (1520301512201), we get a palindrome (2542452542452).

The spelling of 1022151030251 in words is "one trillion, twenty-two billion, one hundred fifty-one million, thirty thousand, two hundred fifty-one".