1222140401345 has 4 divisors (see below), whose sum is σ = 1466568481620. Its totient is φ = 977712321072.

The previous prime is 1222140401239. The next prime is 1222140401351. The reversal of 1222140401345 is 5431040412221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137576453569 + 1084563947776 = 370913^2 + 1041424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222140401345 - 2¹⁴ = 1222140384961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122214040130 + ... + 122214040139.

It is an arithmetic number, because the mean of its divisors is an integer number (366642120405).

Almost surely, 2^{1222140401345} is an apocalyptic number.

It is an amenable number.

1222140401345 is a deficient number, since it is larger than the sum of its proper divisors (244428080275).

1222140401345 is an equidigital number, since it uses as much as digits as its factorization.

1222140401345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244428080274.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1222140401345 its reverse (5431040412221), we get a palindrome (6653180813566).

The spelling of 1222140401345 in words is "one trillion, two hundred twenty-two billion, one hundred forty million, four hundred one thousand, three hundred forty-five".