2151152421251 has 8 divisors (see below), whose sum is σ = 2216368140384. Its totient is φ = 2086902861120.

The previous prime is 2151152421247. The next prime is 2151152421263. The reversal of 2151152421251 is 1521242511512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2151152421251 - 2² = 2151152421247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151152421281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241535231 + ... + 241544136.

It is an arithmetic number, because the mean of its divisors is an integer number (277046017548).

Almost surely, 2^{2151152421251} is an apocalyptic number.

2151152421251 is a deficient number, since it is larger than the sum of its proper divisors (65215719133).

2151152421251 is an equidigital number, since it uses as much as digits as its factorization.

2151152421251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483079501.

The product of its digits is 8000, while the sum is 32.

Adding to 2151152421251 its reverse (1521242511512), we get a palindrome (3672394932763).

The spelling of 2151152421251 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-two million, four hundred twenty-one thousand, two hundred fifty-one".