1222001197955 has 8 divisors (see below), whose sum is σ = 1466552344704. Its totient is φ = 977500353600.

The previous prime is 1222001197951. The next prime is 1222001197999. The reversal of 1222001197955 is 5597911002221.

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

It is not a de Polignac number, because 1222001197955 - 2² = 1222001197951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222001197951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12522131 + ... + 12619340.

It is an arithmetic number, because the mean of its divisors is an integer number (183319043088).

Almost surely, 2^{1222001197955} is an apocalyptic number.

1222001197955 is a deficient number, since it is larger than the sum of its proper divisors (244551146749).

1222001197955 is an equidigital number, since it uses as much as digits as its factorization.

1222001197955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25151197.

The product of its (nonzero) digits is 113400, while the sum is 44.

The spelling of 1222001197955 in words is "one trillion, two hundred twenty-two billion, one million, one hundred ninety-seven thousand, nine hundred fifty-five".