1222021222193 has 4 divisors (see below), whose sum is σ = 1222033635108. Its totient is φ = 1222008809280.

The previous prime is 1222021222181. The next prime is 1222021222199. The reversal of 1222021222193 is 3912221202221.

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 976790258929 + 245230963264 = 988327^2 + 495208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222021222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222021222199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6057596 + ... + 6256077.

It is an arithmetic number, because the mean of its divisors is an integer number (305508408777).

Almost surely, 2^{1222021222193} is an apocalyptic number.

It is an amenable number.

1222021222193 is a deficient number, since it is larger than the sum of its proper divisors (12412915).

1222021222193 is an equidigital number, since it uses as much as digits as its factorization.

1222021222193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412914.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 1222021222193 in words is "one trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, one hundred ninety-three".