21224452141154 has 8 divisors (see below), whose sum is σ = 31836718932480. Its totient is φ = 10612212496996.

The previous prime is 21224452141121. The next prime is 21224452141201. The reversal of 21224452141154 is 45114125442212.

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

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 3 ways as a sum of consecutive naturals, for example, 4704434 + ... + 8036205.

It is an arithmetic number, because the mean of its divisors is an integer number (3979589866560).

Almost surely, 2^{21224452141154} is an apocalyptic number.

21224452141154 is a deficient number, since it is larger than the sum of its proper divisors (10612266791326).

21224452141154 is a wasteful number, since it uses less digits than its factorization.

21224452141154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13573584.

The product of its digits is 102400, while the sum is 38.

Adding to 21224452141154 its reverse (45114125442212), we get a palindrome (66338577583366).

The spelling of 21224452141154 in words is "twenty-one trillion, two hundred twenty-four billion, four hundred fifty-two million, one hundred forty-one thousand, one hundred fifty-four".