2221011210001 has 4 divisors (see below), whose sum is σ = 2221016758272. Its totient is φ = 2221005661732.

The previous prime is 2221011209959. The next prime is 2221011210007. The reversal of 2221011210001 is 1000121101222.

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 2221011210001 - 2¹⁷ = 2221011078929 is a prime.

It is a super-2 number, since 2×2221011210001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221011210007) 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, 2122681 + ... + 2991286.

It is an arithmetic number, because the mean of its divisors is an integer number (555254189568).

Almost surely, 2^{2221011210001} is an apocalyptic number.

It is an amenable number.

2221011210001 is a deficient number, since it is larger than the sum of its proper divisors (5548271).

2221011210001 is an equidigital number, since it uses as much as digits as its factorization.

2221011210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548270.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2221011210001 its reverse (1000121101222), we get a palindrome (3221132311223).

The spelling of 2221011210001 in words is "two trillion, two hundred twenty-one billion, eleven million, two hundred ten thousand, one".