20210221112001 has 8 divisors (see below), whose sum is σ = 26952426309024. Its totient is φ = 13470748328160.

The previous prime is 20210221111937. The next prime is 20210221112009. The reversal of 20210221112001 is 10021112201202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20210221112001 - 2⁶ = 20210221111937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210221112009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683086036 + ... + 683115621.

It is an arithmetic number, because the mean of its divisors is an integer number (3369053288628).

Almost surely, 2^{20210221112001} is an apocalyptic number.

It is an amenable number.

20210221112001 is a deficient number, since it is larger than the sum of its proper divisors (6742205197023).

20210221112001 is a wasteful number, since it uses less digits than its factorization.

20210221112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366206591.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20210221112001 its reverse (10021112201202), we get a palindrome (30231333313203).

The spelling of 20210221112001 in words is "twenty trillion, two hundred ten billion, two hundred twenty-one million, one hundred twelve thousand, one".