21023020202222 has 8 divisors (see below), whose sum is σ = 31764709357056. Its totient is φ = 10434783749872.

The previous prime is 21023020202207. The next prime is 21023020202333. The reversal of 21023020202222 is 22220202032012.

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 = 21023020202194 and 21023020202203.

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, 38363175278 + ... + 38363175825.

It is an arithmetic number, because the mean of its divisors is an integer number (3970588669632).

Almost surely, 2^{21023020202222} is an apocalyptic number.

21023020202222 is a deficient number, since it is larger than the sum of its proper divisors (10741689154834).

21023020202222 is a wasteful number, since it uses less digits than its factorization.

21023020202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76726351242.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21023020202222 its reverse (22220202032012), we get a palindrome (43243222234234).

The spelling of 21023020202222 in words is "twenty-one trillion, twenty-three billion, twenty million, two hundred two thousand, two hundred twenty-two".