21467222051434 has 8 divisors (see below), whose sum is σ = 32270683041828. Its totient is φ = 10710327704160.

The previous prime is 21467222051399. The next prime is 21467222051437. The reversal of 21467222051434 is 43415022276412.

It can be written as a sum of positive squares in 2 ways, for example, as 21448911902209 + 18310149225 = 4631297^2 + 135315^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21467222051437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11641659627 + ... + 11641661470.

Almost surely, 2^{21467222051434} is an apocalyptic number.

21467222051434 is a deficient number, since it is larger than the sum of its proper divisors (10803460990394).

21467222051434 is a wasteful number, since it uses less digits than its factorization.

21467222051434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23283321560.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 21467222051434 in words is "twenty-one trillion, four hundred sixty-seven billion, two hundred twenty-two million, fifty-one thousand, four hundred thirty-four".