2221211021001 has 32 divisors (see below), whose sum is σ = 3480050896896. Its totient is φ = 1233736272000.

The previous prime is 2221211020999. The next prime is 2221211021021. The reversal of 2221211021001 is 1001201121222.

2221211021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221211021001 - 2¹ = 2221211020999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221211021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4526455 + ... + 4993116.

It is an arithmetic number, because the mean of its divisors is an integer number (108751590528).

Almost surely, 2^{2221211021001} is an apocalyptic number.

2221211021001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2221211021001 is a deficient number, since it is larger than the sum of its proper divisors (1258839875895).

2221211021001 is a wasteful number, since it uses less digits than its factorization.

2221211021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519893.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221211021001 its reverse (1001201121222), we get a palindrome (3222412142223).

The spelling of 2221211021001 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, twenty-one thousand, one".