2221201200001 has 16 divisors (see below), whose sum is σ = 2554313739264. Its totient is φ = 1892040235344.

The previous prime is 2221201199999. The next prime is 2221201200013. The reversal of 2221201200001 is 1000021021222.

It is a happy number.

It is not a de Polignac number, because 2221201200001 - 2¹ = 2221201199999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221201210001) 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, 13912710 + ... + 14071456.

It is an arithmetic number, because the mean of its divisors is an integer number (159644608704).

Almost surely, 2^{2221201200001} is an apocalyptic number.

It is an amenable number.

2221201200001 is a deficient number, since it is larger than the sum of its proper divisors (333112539263).

2221201200001 is a wasteful number, since it uses less digits than its factorization.

2221201200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171180.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2221201200001 its reverse (1000021021222), we get a palindrome (3221222221223).

The spelling of 2221201200001 in words is "two trillion, two hundred twenty-one billion, two hundred one million, two hundred thousand, one".