2221223100001 has 16 divisors (see below), whose sum is σ = 2363383292688. Its totient is φ = 2080353484800.

The previous prime is 2221223099941. The next prime is 2221223100059. The reversal of 2221223100001 is 1000013221222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 324609365025 + 1896613734976 = 569745^2 + 1377176^2 .

It is not a de Polignac number, because 2221223100001 - 2¹⁵ = 2221223067233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221223100071) 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, 5376841 + ... + 5775193.

It is an arithmetic number, because the mean of its divisors is an integer number (147711455793).

Almost surely, 2^{2221223100001} is an apocalyptic number.

It is an amenable number.

2221223100001 is a deficient number, since it is larger than the sum of its proper divisors (142160192687).

2221223100001 is a wasteful number, since it uses less digits than its factorization.

2221223100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399972.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2221223100001 its reverse (1000013221222), we get a palindrome (3221236321223).

The spelling of 2221223100001 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-three million, one hundred thousand, one".