1211303120222 has 16 divisors (see below), whose sum is σ = 2004445315152. Its totient is φ = 545427295680.

The previous prime is 1211303120221. The next prime is 1211303120239. The reversal of 1211303120222 is 2220213031121.

It is a junction number, because it is equal to n+sod(n) for n = 1211303120194 and 1211303120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211303120221) 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, 568152368 + ... + 568154499.

It is an arithmetic number, because the mean of its divisors is an integer number (125277832197).

Almost surely, 2^{1211303120222} is an apocalyptic number.

1211303120222 is a deficient number, since it is larger than the sum of its proper divisors (793142194930).

1211303120222 is a wasteful number, since it uses less digits than its factorization.

1211303120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136306923.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1211303120222 its reverse (2220213031121), we get a palindrome (3431516151343).

The spelling of 1211303120222 in words is "one trillion, two hundred eleven billion, three hundred three million, one hundred twenty thousand, two hundred twenty-two".