2221221112201 has 16 divisors (see below), whose sum is σ = 2766748086144. Its totient is φ = 1736275572864.

The previous prime is 2221221112183. The next prime is 2221221112223. The reversal of 2221221112201 is 1022111221222.

It is not a de Polignac number, because 2221221112201 - 2¹³ = 2221221104009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221221112001) 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, 147034756 + ... + 147049861.

It is an arithmetic number, because the mean of its divisors is an integer number (172921755384).

Almost surely, 2^{2221221112201} is an apocalyptic number.

It is an amenable number.

2221221112201 is a deficient number, since it is larger than the sum of its proper divisors (545526973943).

2221221112201 is a wasteful number, since it uses less digits than its factorization.

2221221112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294084720.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221221112201 its reverse (1022111221222), we get a palindrome (3243332333423).

The spelling of 2221221112201 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred one".