21471341223406 has 8 divisors (see below), whose sum is σ = 32224795944264. Its totient is φ = 10729742575320.

The previous prime is 21471341223377. The next prime is 21471341223443. The reversal of 21471341223406 is 60432214317412.

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

It is a super-2 number, since 2×21471341223406² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2964013665 + ... + 2964020908.

It is an arithmetic number, because the mean of its divisors is an integer number (4028099493033).

Almost surely, 2^{21471341223406} is an apocalyptic number.

21471341223406 is a deficient number, since it is larger than the sum of its proper divisors (10753454720858).

21471341223406 is a wasteful number, since it uses less digits than its factorization.

21471341223406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928036386.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 21471341223406 in words is "twenty-one trillion, four hundred seventy-one billion, three hundred forty-one million, two hundred twenty-three thousand, four hundred six".