12221078354199 has 128 divisors (see below), whose sum is σ = 22469222092800. Its totient is φ = 6454228210560.

The previous prime is 12221078354183. The next prime is 12221078354207. The reversal of 12221078354199 is 99145387012221.

12221078354199 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 1 + 0 + 7 + 8 + 3 + 541 + 99 = 666.

It is not a de Polignac number, because 12221078354199 - 2⁴ = 12221078354183 is a prime.

It is a super-2 number, since 2×12221078354199² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221078354999) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20466264 + ... + 21054930.

It is an arithmetic number, because the mean of its divisors is an integer number (175540797600).

Almost surely, 2^{12221078354199} is an apocalyptic number.

12221078354199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12221078354199 is a deficient number, since it is larger than the sum of its proper divisors (10248143738601).

12221078354199 is a wasteful number, since it uses less digits than its factorization.

12221078354199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589002 (or 588996 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 12221078354199 in words is "twelve trillion, two hundred twenty-one billion, seventy-eight million, three hundred fifty-four thousand, one hundred ninety-nine".