2221010020001 has 4 divisors (see below), whose sum is σ = 2222460713904. Its totient is φ = 2219559326100.

The previous prime is 2221010019983. The next prime is 2221010020003. The reversal of 2221010020001 is 1000200101222.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2221010020001 - 2³⁴ = 2203830150817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221010020003) 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 3 ways as a sum of consecutive naturals, for example, 725344655 + ... + 725347716.

It is an arithmetic number, because the mean of its divisors is an integer number (555615178476).

Almost surely, 2^{2221010020001} is an apocalyptic number.

It is an amenable number.

2221010020001 is a deficient number, since it is larger than the sum of its proper divisors (1450693903).

2221010020001 is a wasteful number, since it uses less digits than its factorization.

2221010020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450693902.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2221010020001 its reverse (1000200101222), we get a palindrome (3221210121223).

The spelling of 2221010020001 in words is "two trillion, two hundred twenty-one billion, ten million, twenty thousand, one".