20221220223030 has 32 divisors (see below), whose sum is σ = 48617129159424. Its totient is φ = 5382747545696.

The previous prime is 20221220223013. The next prime is 20221220223089. The reversal of 20221220223030 is 3032202212202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20221220222988 and 20221220223006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598598274 + ... + 598632053.

It is an arithmetic number, because the mean of its divisors is an integer number (1519285286232).

Almost surely, 2^{20221220223030} is an apocalyptic number.

20221220223030 is an abundant number, since it is smaller than the sum of its proper divisors (28395908936394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221220223030 is a wasteful number, since it uses less digits than its factorization.

20221220223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197230900.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20221220223030 its reverse (3032202212202), we get a palindrome (23253422435232).

The spelling of 20221220223030 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-three thousand, thirty".