22000001220001 has 32 divisors (see below), whose sum is σ = 25466271989760. Its totient is φ = 18616197600000.

The previous prime is 22000001219971. The next prime is 22000001220017. The reversal of 22000001220001 is 10002210000022.

It is not a de Polignac number, because 22000001220001 - 2⁹ = 22000001219489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22000001220001.

It is not an unprimeable number, because it can be changed into a prime (22000001220101) 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, 234472185 + ... + 234565993.

It is an arithmetic number, because the mean of its divisors is an integer number (795820999680).

Almost surely, 2^{22000001220001} is an apocalyptic number.

It is an amenable number.

22000001220001 is a deficient number, since it is larger than the sum of its proper divisors (3466270769759).

22000001220001 is a wasteful number, since it uses less digits than its factorization.

22000001220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95245.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22000001220001 its reverse (10002210000022), we get a palindrome (32002211220023).

The spelling of 22000001220001 in words is "twenty-two trillion, one million, two hundred twenty thousand, one".