1200222110221 has 8 divisors (see below), whose sum is σ = 1225890422784. Its totient is φ = 1174559284080.

The previous prime is 1200222110159. The next prime is 1200222110233. The reversal of 1200222110221 is 1220112220021.

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 1200222110221 - 2²³ = 1200213721613 is a prime.

It is a super-2 number, since 2×1200222110221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200222110195 and 1200222110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200222110261) 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, 927885 + ... + 1805938.

It is an arithmetic number, because the mean of its divisors is an integer number (153236302848).

Almost surely, 2^{1200222110221} is an apocalyptic number.

It is an amenable number.

1200222110221 is a deficient number, since it is larger than the sum of its proper divisors (25668312563).

1200222110221 is an equidigital number, since it uses as much as digits as its factorization.

1200222110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743211.

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

Adding to 1200222110221 its reverse (1220112220021), we get a palindrome (2420334330242).

The spelling of 1200222110221 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".