21223021210022 has 8 divisors (see below), whose sum is σ = 31834970157072. Its totient is φ = 10611364491000.

The previous prime is 21223021209997. The next prime is 21223021210037. The reversal of 21223021210022 is 22001212032212.

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

It is a junction number, because it is equal to n+sod(n) for n = 21223021209976 and 21223021210003.

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, 72875354 + ... + 73165997.

It is an arithmetic number, because the mean of its divisors is an integer number (3979371269634).

Almost surely, 2^{21223021210022} is an apocalyptic number.

21223021210022 is a deficient number, since it is larger than the sum of its proper divisors (10611948947050).

21223021210022 is a wasteful number, since it uses less digits than its factorization.

21223021210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146114014.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21223021210022 its reverse (22001212032212), we get a palindrome (43224233242234).

The spelling of 21223021210022 in words is "twenty-one trillion, two hundred twenty-three billion, twenty-one million, two hundred ten thousand, twenty-two".