20221221221130 has 64 divisors (see below), whose sum is σ = 49415416606080. Its totient is φ = 5294278834944.

The previous prime is 20221221221099. The next prime is 20221221221153. The reversal of 20221221221130 is 3112212212202.

It is a junction number, because it is equal to n+sod(n) for n = 20221221221097 and 20221221221106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5756449 + ... + 8577828.

It is an arithmetic number, because the mean of its divisors is an integer number (772115884470).

Almost surely, 2^{20221221221130} is an apocalyptic number.

20221221221130 is an abundant number, since it is smaller than the sum of its proper divisors (29194195384950).

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

20221221221130 is a wasteful number, since it uses less digits than its factorization.

20221221221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14335143.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20221221221130 its reverse (3112212212202), we get a palindrome (23333433433332).

The spelling of 20221221221130 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred thirty".