1200221122001 has 8 divisors (see below), whose sum is σ = 1309586582304. Its totient is φ = 1090898069920.

The previous prime is 1200221121977. The next prime is 1200221122069. The reversal of 1200221122001 is 1002211220021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200221122001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200221122091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10542860 + ... + 10656093.

It is an arithmetic number, because the mean of its divisors is an integer number (163698322788).

Almost surely, 2^{1200221122001} is an apocalyptic number.

1200221122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200221122001 is a deficient number, since it is larger than the sum of its proper divisors (109365460303).

1200221122001 is a wasteful number, since it uses less digits than its factorization.

1200221122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21204111.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200221122001 its reverse (1002211220021), we get a palindrome (2202432342022).

It can be divided in two parts, 1 and 200221122001, that added together give a palindrome (200221122002).

The spelling of 1200221122001 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, one".