1200221212223 has 32 divisors (see below), whose sum is σ = 1362673912320. Its totient is φ = 1047631104000.

The previous prime is 1200221212181. The next prime is 1200221212247. The reversal of 1200221212223 is 3222121220021.

It is a cyclic number.

It is not a de Polignac number, because 1200221212223 - 2¹² = 1200221208127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200221212195 and 1200221212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221212523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7754078 + ... + 7907348.

It is an arithmetic number, because the mean of its divisors is an integer number (42583559760).

Almost surely, 2^{1200221212223} is an apocalyptic number.

1200221212223 is a deficient number, since it is larger than the sum of its proper divisors (162452700097).

1200221212223 is a wasteful number, since it uses less digits than its factorization.

1200221212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153599.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1200221212223 its reverse (3222121220021), we get a palindrome (4422342432244).

The spelling of 1200221212223 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twenty-three".