2221010121001 has 16 divisors (see below), whose sum is σ = 2644278295680. Its totient is φ = 1825811176320.

The previous prime is 2221010120977. The next prime is 2221010121107. The reversal of 2221010121001 is 1001210101222.

It is a cyclic number.

It is not a de Polignac number, because 2221010121001 - 2¹⁷ = 2221009989929 is a prime.

It is a super-2 number, since 2×2221010121001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221010121601) 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 15 ways as a sum of consecutive naturals, for example, 65565366 + ... + 65599231.

It is an arithmetic number, because the mean of its divisors is an integer number (165267393480).

Almost surely, 2^{2221010121001} is an apocalyptic number.

It is an amenable number.

2221010121001 is a deficient number, since it is larger than the sum of its proper divisors (423268174679).

2221010121001 is a wasteful number, since it uses less digits than its factorization.

2221010121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131164704.

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

Adding to 2221010121001 its reverse (1001210101222), we get a palindrome (3222220222223).

The spelling of 2221010121001 in words is "two trillion, two hundred twenty-one billion, ten million, one hundred twenty-one thousand, one".