21622202640022 has 8 divisors (see below), whose sum is σ = 32433371620056. Its totient is φ = 10811078766672.

The previous prime is 21622202639993. The next prime is 21622202640067. The reversal of 21622202640022 is 22004620222612.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10051663 + ... + 12011674.

It is an arithmetic number, because the mean of its divisors is an integer number (4054171452507).

Almost surely, 2^{21622202640022} is an apocalyptic number.

21622202640022 is a deficient number, since it is larger than the sum of its proper divisors (10811168980034).

21622202640022 is a wasteful number, since it uses less digits than its factorization.

21622202640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22553342.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 21622202640022 its reverse (22004620222612), we get a palindrome (43626822862634).

The spelling of 21622202640022 in words is "twenty-one trillion, six hundred twenty-two billion, two hundred two million, six hundred forty thousand, twenty-two".