2221012123001 has 16 divisors (see below), whose sum is σ = 2552636121600. Its totient is φ = 1893002012928.

The previous prime is 2221012122937. The next prime is 2221012123009. The reversal of 2221012123001 is 1003212101222.

It is a cyclic number.

It is not a de Polignac number, because 2221012123001 - 2⁶ = 2221012122937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221012123009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343121 + ... + 2135358.

It is an arithmetic number, because the mean of its divisors is an integer number (159539757600).

Almost surely, 2^{2221012123001} is an apocalyptic number.

It is an amenable number.

2221012123001 is a deficient number, since it is larger than the sum of its proper divisors (331623998599).

2221012123001 is a wasteful number, since it uses less digits than its factorization.

2221012123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479208.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221012123001 its reverse (1003212101222), we get a palindrome (3224224224223).

The spelling of 2221012123001 in words is "two trillion, two hundred twenty-one billion, twelve million, one hundred twenty-three thousand, one".