1200221222011 has 8 divisors (see below), whose sum is σ = 1375207572960. Its totient is φ = 1026116415168.

The previous prime is 1200221221973. The next prime is 1200221222017. The reversal of 1200221222011 is 1102221220021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1200221222011 - 2⁷ = 1200221221883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200221222017) 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, 220383106 + ... + 220388551.

It is an arithmetic number, because the mean of its divisors is an integer number (171900946620).

Almost surely, 2^{1200221222011} is an apocalyptic number.

1200221222011 is a deficient number, since it is larger than the sum of its proper divisors (174986350949).

1200221222011 is an equidigital number, since it uses as much as digits as its factorization.

1200221222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440772053.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200221222011 its reverse (1102221220021), we get a palindrome (2302442442032).

The spelling of 1200221222011 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, eleven".