21443152622 has 4 divisors (see below), whose sum is σ = 32164728936. Its totient is φ = 10721576310.

The previous prime is 21443152603. The next prime is 21443152651. The reversal of 21443152622 is 22625134412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5360788154 + ... + 5360788157.

It is an arithmetic number, because the mean of its divisors is an integer number (8041182234).

Almost surely, 2^21443152622 is an apocalyptic number.

21443152622 is a deficient number, since it is larger than the sum of its proper divisors (10721576314).

21443152622 is a wasteful number, since it uses less digits than its factorization.

21443152622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10721576313.

The product of its digits is 23040, while the sum is 32.

The spelling of 21443152622 in words is "twenty-one billion, four hundred forty-three million, one hundred fifty-two thousand, six hundred twenty-two".