2222101221145 has 8 divisors (see below), whose sum is σ = 2871638501256. Its totient is φ = 1640936286336.

The previous prime is 2222101221107. The next prime is 2222101221167. The reversal of 2222101221145 is 5411221012222.

It can be written as a sum of positive squares in 4 ways, for example, as 374059452816 + 1848041768329 = 611604^2 + 1359427^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222101221145 is a prime.

It is a super-2 number, since 2×2222101221145² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17093086252 + ... + 17093086381.

It is an arithmetic number, because the mean of its divisors is an integer number (358954812657).

Almost surely, 2^{2222101221145} is an apocalyptic number.

It is an amenable number.

2222101221145 is a deficient number, since it is larger than the sum of its proper divisors (649537280111).

2222101221145 is a wasteful number, since it uses less digits than its factorization.

2222101221145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34186172651.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 2222101221145 its reverse (5411221012222), we get a palindrome (7633322233367).

The spelling of 2222101221145 in words is "two trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, one hundred forty-five".