21222223355462 has 8 divisors (see below), whose sum is σ = 32573645150376. Its totient is φ = 10364341638672.

The previous prime is 21222223355413. The next prime is 21222223355539. The reversal of 21222223355462 is 26455332222212.

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

It is a congruent number.

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, 123385019423 + ... + 123385019594.

It is an arithmetic number, because the mean of its divisors is an integer number (4071705643797).

Almost surely, 2^{21222223355462} is an apocalyptic number.

21222223355462 is a deficient number, since it is larger than the sum of its proper divisors (11351421794914).

21222223355462 is a wasteful number, since it uses less digits than its factorization.

21222223355462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246770039062.

The product of its digits is 691200, while the sum is 41.

Adding to 21222223355462 its reverse (26455332222212), we get a palindrome (47677555577674).

The spelling of 21222223355462 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred twenty-three million, three hundred fifty-five thousand, four hundred sixty-two".