20321203022122 has 8 divisors (see below), whose sum is σ = 30783604578372. Its totient is φ = 10060001496000.

The previous prime is 20321203022047. The next prime is 20321203022171. The reversal of 20321203022122 is 22122030212302.

It can be written as a sum of positive squares in 2 ways, for example, as 20158115468841 + 163087553281 = 4489779^2 + 403841^2 .

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 = 20321203022093 and 20321203022102.

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, 50300007279 + ... + 50300007682.

Almost surely, 2^{20321203022122} is an apocalyptic number.

20321203022122 is a deficient number, since it is larger than the sum of its proper divisors (10462401556250).

20321203022122 is a wasteful number, since it uses less digits than its factorization.

20321203022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100600015064.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20321203022122 its reverse (22122030212302), we get a palindrome (42443233234424).

The spelling of 20321203022122 in words is "twenty trillion, three hundred twenty-one billion, two hundred three million, twenty-two thousand, one hundred twenty-two".