2021220002001 has 8 divisors (see below), whose sum is σ = 2699230940224. Its totient is φ = 1345344532560.

The previous prime is 2021220001967. The next prime is 2021220002017. The reversal of 2021220002001 is 1002000221202.

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

It is not a de Polignac number, because 2021220002001 - 2¹⁵ = 2021219969233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021220009001) 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, 533864986 + ... + 533868771.

It is an arithmetic number, because the mean of its divisors is an integer number (337403867528).

Almost surely, 2^{2021220002001} is an apocalyptic number.

It is an amenable number.

2021220002001 is a deficient number, since it is larger than the sum of its proper divisors (678010938223).

2021220002001 is a wasteful number, since it uses less digits than its factorization.

2021220002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067734391.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2021220002001 its reverse (1002000221202), we get a palindrome (3023220223203).

The spelling of 2021220002001 in words is "two trillion, twenty-one billion, two hundred twenty million, two thousand, one".