2221222220001 has 24 divisors (see below), whose sum is σ = 3295321184064. Its totient is φ = 1440716401440.

The previous prime is 2221222219973. The next prime is 2221222220039. The reversal of 2221222220001 is 1000222221222.

2221222220001 is a `hidden beast` number, since 2 + 221 + 222 + 220 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 2221222220001 - 2¹⁰ = 2221222218977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221222220051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6490170 + ... + 6823836.

It is an arithmetic number, because the mean of its divisors is an integer number (137305049336).

Almost surely, 2^{2221222220001} is an apocalyptic number.

It is an amenable number.

2221222220001 is a deficient number, since it is larger than the sum of its proper divisors (1074098964063).

2221222220001 is a wasteful number, since it uses less digits than its factorization.

2221222220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353701 (or 353698 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2221222220001 its reverse (1000222221222), we get a palindrome (3221444441223).

It can be divided in two parts, 2221 and 222220001, that added together give a palindrome (222222222).

The spelling of 2221222220001 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, one".