1201222199999 has 4 divisors (see below), whose sum is σ = 1230520302480. Its totient is φ = 1171924097520.

The previous prime is 1201222199963. The next prime is 1201222200001. The reversal of 1201222199999 is 9999912221021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201222199999 - 2⁸ = 1201222199743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222199299) 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, 14649051179 + ... + 14649051260.

It is an arithmetic number, because the mean of its divisors is an integer number (307630075620).

Almost surely, 2^{1201222199999} is an apocalyptic number.

1201222199999 is a deficient number, since it is larger than the sum of its proper divisors (29298102481).

1201222199999 is an equidigital number, since it uses as much as digits as its factorization.

1201222199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29298102480.

The product of its (nonzero) digits is 944784, while the sum is 56.

The spelling of 1201222199999 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred ninety-nine".