2021210220001 has 8 divisors (see below), whose sum is σ = 2349106309440. Its totient is φ = 1703102073648.

The previous prime is 2021210219993. The next prime is 2021210220013. The reversal of 2021210220001 is 1000220121202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2021210220001 - 2³ = 2021210219993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021210221001) 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, 2446985326 + ... + 2446986151.

It is an arithmetic number, because the mean of its divisors is an integer number (293638288680).

Almost surely, 2^{2021210220001} is an apocalyptic number.

It is an amenable number.

2021210220001 is a deficient number, since it is larger than the sum of its proper divisors (327896089439).

2021210220001 is an equidigital number, since it uses as much as digits as its factorization.

2021210220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893971543.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021210220001 its reverse (1000220121202), we get a palindrome (3021430341203).

The spelling of 2021210220001 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twenty thousand, one".