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2121200021219 is a prime number
BaseRepresentation
bin11110110111100001010…
…111111010111011100011
321111210012002001212002212
4132313201113322323203
5234223204201134334
64302244342032335
7306152212454426
oct36674127727343
97453162055085
102121200021219
11748661126684
122a31297186ab
1312504a24c766
147494932d9bd
153a29d4c4ece
hex1ede15faee3

2121200021219 has 2 divisors, whose sum is σ = 2121200021220. Its totient is φ = 2121200021218.

The previous prime is 2121200021147. The next prime is 2121200021231. The reversal of 2121200021219 is 9121200021212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121200021219 - 216 = 2121199955683 is a prime.

It is a super-2 number, since 2×21212000212192 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121200021194 and 2121200021203.

It is not a weakly prime, because it can be changed into another prime (2121200021419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600010609 + 1060600010610.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600010610).

Almost surely, 22121200021219 is an apocalyptic number.

2121200021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121200021219 is an equidigital number, since it uses as much as digits as its factorization.

2121200021219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 2121200021219 in words is "two trillion, one hundred twenty-one billion, two hundred million, twenty-one thousand, two hundred nineteen".