1200111202222 has 4 divisors (see below), whose sum is σ = 1800166803336. Its totient is φ = 600055601110.

The previous prime is 1200111202153. The next prime is 1200111202223. The reversal of 1200111202222 is 2222021110021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1200111202222³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200111202196 and 1200111202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111202223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300027800554 + ... + 300027800557.

It is an arithmetic number, because the mean of its divisors is an integer number (450041700834).

Almost surely, 2^{1200111202222} is an apocalyptic number.

1200111202222 is a deficient number, since it is larger than the sum of its proper divisors (600055601114).

1200111202222 is an equidigital number, since it uses as much as digits as its factorization.

1200111202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600055601113.

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

Adding to 1200111202222 its reverse (2222021110021), we get a palindrome (3422132312243).

The spelling of 1200111202222 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred two thousand, two hundred twenty-two".