222211010100001 has 6 divisors (see below), whose sum is σ = 240619022771190. Its totient is φ = 205117855476768.

The previous prime is 222211010099983. The next prime is 222211010100011. The reversal of 222211010100001 is 100001010112222.

It can be written as a sum of positive squares in 3 ways, for example, as 13662781542400 + 208548228557601 = 3696320^2 + 14441199^2 .

It is not a de Polignac number, because 222211010100001 - 2³⁷ = 222073571146529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211010100011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 657429023796 + ... + 657429024133.

It is an arithmetic number, because the mean of its divisors is an integer number (40103170461865).

Almost surely, 2^{222211010100001} is an apocalyptic number.

It is an amenable number.

222211010100001 is a deficient number, since it is larger than the sum of its proper divisors (18408012671189).

222211010100001 is a wasteful number, since it uses less digits than its factorization.

222211010100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314858047955 (or 1314858047942 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222211010100001 its reverse (100001010112222), we get a palindrome (322212020212223).

The spelling of 222211010100001 in words is "two hundred twenty-two trillion, two hundred eleven billion, ten million, one hundred thousand, one".