21602158341121 has 8 divisors (see below), whose sum is σ = 21607392777984. Its totient is φ = 21596924373360.

The previous prime is 21602158341103. The next prime is 21602158341143. The reversal of 21602158341121 is 12114385120612.

It is a happy number.

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 21602158341121 - 2⁵ = 21602158341089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21602158341151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102698226 + ... + 102908356.

It is an arithmetic number, because the mean of its divisors is an integer number (2700924097248).

Almost surely, 2^{21602158341121} is an apocalyptic number.

It is an amenable number.

21602158341121 is a deficient number, since it is larger than the sum of its proper divisors (5234436863).

21602158341121 is a wasteful number, since it uses less digits than its factorization.

21602158341121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234551.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 21602158341121 in words is "twenty-one trillion, six hundred two billion, one hundred fifty-eight million, three hundred forty-one thousand, one hundred twenty-one".