2221111201001 has 8 divisors (see below), whose sum is σ = 2769177601344. Its totient is φ = 1730736000720.

The previous prime is 2221111200923. The next prime is 2221111201009. The reversal of 2221111201001 is 1001021111222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221111201001 - 2¹⁸ = 2221110938857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221111201009) 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 7 ways as a sum of consecutive naturals, for example, 14422799930 + ... + 14422800083.

It is an arithmetic number, because the mean of its divisors is an integer number (346147200168).

Almost surely, 2^{2221111201001} is an apocalyptic number.

It is an amenable number.

2221111201001 is a deficient number, since it is larger than the sum of its proper divisors (548066400343).

2221111201001 is a wasteful number, since it uses less digits than its factorization.

2221111201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28845600031.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2221111201001 its reverse (1001021111222), we get a palindrome (3222132312223).

The spelling of 2221111201001 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred one thousand, one".