2159744421122 has 6 divisors (see below), whose sum is σ = 3239619749193. Its totient is φ = 1079871171392.

The previous prime is 2159744421101. The next prime is 2159744421169. The reversal of 2159744421122 is 2211244479512.

It can be written as a sum of positive squares in 2 ways, for example, as 2063247832801 + 96496588321 = 1436401^2 + 310639^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1039169.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1558754 + ... + 2597922.

Almost surely, 2^{2159744421122} is an apocalyptic number.

2159744421122 is a deficient number, since it is larger than the sum of its proper divisors (1079875328071).

2159744421122 is an frugal number, since it uses more digits than its factorization.

2159744421122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078340 (or 1039171 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The spelling of 2159744421122 in words is "two trillion, one hundred fifty-nine billion, seven hundred forty-four million, four hundred twenty-one thousand, one hundred twenty-two".