1320222123212 has 12 divisors (see below), whose sum is σ = 2331981134280. Its totient is φ = 653941799136.

The previous prime is 1320222123211. The next prime is 1320222123277. The reversal of 1320222123212 is 2123212220231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1320222123211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542315137 + ... + 1542315992.

It is an arithmetic number, because the mean of its divisors is an integer number (194331761190).

Almost surely, 2^{1320222123212} is an apocalyptic number.

It is an amenable number.

1320222123212 is a deficient number, since it is larger than the sum of its proper divisors (1011759011068).

1320222123212 is a wasteful number, since it uses less digits than its factorization.

1320222123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084631240 (or 3084631238 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1320222123212 its reverse (2123212220231), we get a palindrome (3443434343443).

The spelling of 1320222123212 in words is "one trillion, three hundred twenty billion, two hundred twenty-two million, one hundred twenty-three thousand, two hundred twelve".