20221001012120 has 64 divisors (see below), whose sum is σ = 46137176920800. Its totient is φ = 7975256002560.

The previous prime is 20221001012111. The next prime is 20221001012129. The reversal of 20221001012120 is 2121010012202.

It is an interprime number because it is at equal distance from previous prime (20221001012111) and next prime (20221001012129).

It is a junction number, because it is equal to n+sod(n) for n = 20221001012095 and 20221001012104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221001012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8643266 + ... + 10730705.

Almost surely, 2^{20221001012120} is an apocalyptic number.

20221001012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221001012120 is an abundant number, since it is smaller than the sum of its proper divisors (25916175908680).

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

20221001012120 is a wasteful number, since it uses less digits than its factorization.

20221001012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19374348 (or 19374344 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221001012120 its reverse (2121010012202), we get a palindrome (22342011024322).

The spelling of 20221001012120 in words is "twenty trillion, two hundred twenty-one billion, one million, twelve thousand, one hundred twenty".