21335354687422 has 16 divisors (see below), whose sum is σ = 34033535231760. Its totient is φ = 9996323384448.

The previous prime is 21335354687369. The next prime is 21335354687429. The reversal of 21335354687422 is 22478645353312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21335354687429) 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, 1370102328 + ... + 1370117899.

It is an arithmetic number, because the mean of its divisors is an integer number (2127095951985).

Almost surely, 2^{21335354687422} is an apocalyptic number.

21335354687422 is a deficient number, since it is larger than the sum of its proper divisors (12698180544338).

21335354687422 is a wasteful number, since it uses less digits than its factorization.

21335354687422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740220475.

The product of its digits is 29030400, while the sum is 55.

The spelling of 21335354687422 in words is "twenty-one trillion, three hundred thirty-five billion, three hundred fifty-four million, six hundred eighty-seven thousand, four hundred twenty-two".