2122151405 has 8 divisors (see below), whose sum is σ = 2778089184. Its totient is φ = 1543382800.

The previous prime is 2122151377. The next prime is 2122151441. The reversal of 2122151405 is 5041512212.

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

It is not a de Polignac number, because 2122151405 - 2¹⁸ = 2121889261 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19292231 + ... + 19292340.

It is an arithmetic number, because the mean of its divisors is an integer number (347261148).

Almost surely, 2^2122151405 is an apocalyptic number.

It is an amenable number.

2122151405 is a deficient number, since it is larger than the sum of its proper divisors (655937779).

2122151405 is a wasteful number, since it uses less digits than its factorization.

2122151405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38584587.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2122151405 is about 46066.8145740510. The cubic root of 2122151405 is about 1285.0660647245.

Adding to 2122151405 its reverse (5041512212), we get a palindrome (7163663617).

The spelling of 2122151405 in words is "two billion, one hundred twenty-two million, one hundred fifty-one thousand, four hundred five".