20221211320320 has 112 divisors (see below), whose sum is σ = 64703927162880. Its totient is φ = 5392322985984.

The previous prime is 20221211320291. The next prime is 20221211320337. The reversal of 20221211320320 is 2302311212202.

It is a super-2 number, since 2×20221211320320² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82157440 + ... + 82403199.

Almost surely, 2^{20221211320320} is an apocalyptic number.

20221211320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221211320320 is an abundant number, since it is smaller than the sum of its proper divisors (44482715842560).

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

20221211320320 is an equidigital number, since it uses as much as digits as its factorization.

20221211320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164560673 (or 164560649 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20221211320320 its reverse (2302311212202), we get a palindrome (22523522532522).

The spelling of 20221211320320 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, three hundred twenty thousand, three hundred twenty".