20224221212001 has 4 divisors (see below), whose sum is σ = 26965628282672. Its totient is φ = 13482814141332.

The previous prime is 20224221211921. The next prime is 20224221212003. The reversal of 20224221212001 is 10021212242202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20224221212001 - 2¹⁴ = 20224221195617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20224221212003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370703535331 + ... + 3370703535336.

It is an arithmetic number, because the mean of its divisors is an integer number (6741407070668).

Almost surely, 2^{20224221212001} is an apocalyptic number.

It is an amenable number.

20224221212001 is a deficient number, since it is larger than the sum of its proper divisors (6741407070671).

20224221212001 is an equidigital number, since it uses as much as digits as its factorization.

20224221212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741407070670.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20224221212001 its reverse (10021212242202), we get a palindrome (30245433454203).

The spelling of 20224221212001 in words is "twenty trillion, two hundred twenty-four billion, two hundred twenty-one million, two hundred twelve thousand, one".