1200220111222 has 16 divisors (see below), whose sum is σ = 2067364785600. Its totient is φ = 516841196040.

The previous prime is 1200220111183. The next prime is 1200220111267. The reversal of 1200220111222 is 2221110220021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200220111196 and 1200220111205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435669572 + ... + 1435670407.

It is an arithmetic number, because the mean of its divisors is an integer number (129210299100).

Almost surely, 2^{1200220111222} is an apocalyptic number.

1200220111222 is a deficient number, since it is larger than the sum of its proper divisors (867144674378).

1200220111222 is a wasteful number, since it uses less digits than its factorization.

1200220111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871340011.

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

Adding to 1200220111222 its reverse (2221110220021), we get a palindrome (3421330331243).

The spelling of 1200220111222 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty-two".