21434455421022 has 32 divisors (see below), whose sum is σ = 49005678177792. Its totient is φ = 6122550468384.

The previous prime is 21434455420999. The next prime is 21434455421089. The reversal of 21434455421022 is 22012455443412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65654058 + ... + 65979725.

It is an arithmetic number, because the mean of its divisors is an integer number (1531427443056).

Almost surely, 2^{21434455421022} is an apocalyptic number.

21434455421022 is an abundant number, since it is smaller than the sum of its proper divisors (27571222756770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21434455421022 is a wasteful number, since it uses less digits than its factorization.

21434455421022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131637672.

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 21434455421022 in words is "twenty-one trillion, four hundred thirty-four billion, four hundred fifty-five million, four hundred twenty-one thousand, twenty-two".