2111221222201 has 8 divisors (see below), whose sum is σ = 2598426119744. Its totient is φ = 1670416791120.

The previous prime is 2111221222193. The next prime is 2111221222207. The reversal of 2111221222201 is 1022221221112.

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

It is not a de Polignac number, because 2111221222201 - 2³ = 2111221222193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111221222207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11600116515 + ... + 11600116696.

It is an arithmetic number, because the mean of its divisors is an integer number (324803264968).

Almost surely, 2^{2111221222201} is an apocalyptic number.

It is an amenable number.

2111221222201 is a deficient number, since it is larger than the sum of its proper divisors (487204897543).

2111221222201 is a wasteful number, since it uses less digits than its factorization.

2111221222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23200233231.

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

Adding to 2111221222201 its reverse (1022221221112), we get a palindrome (3133442443313).

The spelling of 2111221222201 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".