1222222141 has 6 divisors (see below), whose sum is σ = 1421768670. Its totient is φ = 1047618936.

The previous prime is 1222222121. The next prime is 1222222171. The reversal of 1222222141 is 1412222221.

It can be written as a sum of positive squares in only one way, i.e., 1127549241 + 94672900 = 33579^2 + 9730^2 .

It is not a de Polignac number, because 1222222141 - 2¹⁵ = 1222189373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222222121) 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, 12471606 + ... + 12471703.

It is an arithmetic number, because the mean of its divisors is an integer number (236961445).

Almost surely, 2^1222222141 is an apocalyptic number.

It is an amenable number.

1222222141 is a deficient number, since it is larger than the sum of its proper divisors (199546529).

1222222141 is an equidigital number, since it uses as much as digits as its factorization.

1222222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24943323 (or 24943316 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 1222222141 is about 34960.2937773698. The cubic root of 1222222141 is about 1069.1780863147.

Adding to 1222222141 its reverse (1412222221), we get a palindrome (2634444362).

The spelling of 1222222141 in words is "one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred forty-one".