2122121214505 has 8 divisors (see below), whose sum is σ = 2550505874112. Its totient is φ = 1695056693808.

The previous prime is 2122121214497. The next prime is 2122121214523. The reversal of 2122121214505 is 5054121212212.

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 2122121214505 - 2³ = 2122121214497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330031189 + ... + 330037618.

It is an arithmetic number, because the mean of its divisors is an integer number (318813234264).

Almost surely, 2^{2122121214505} is an apocalyptic number.

It is an amenable number.

2122121214505 is a deficient number, since it is larger than the sum of its proper divisors (428384659607).

2122121214505 is an equidigital number, since it uses as much as digits as its factorization.

2122121214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660069455.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 2122121214505 its reverse (5054121212212), we get a palindrome (7176242426717).

The spelling of 2122121214505 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred fourteen thousand, five hundred five".