1222001212112 has 10 divisors (see below), whose sum is σ = 2367627348498. Its totient is φ = 611000606048.

The previous prime is 1222001212057. The next prime is 1222001212123. The reversal of 1222001212112 is 2112121002221.

It can be written as a sum of positive squares in only one way, i.e., 1107326871616 + 114674340496 = 1052296^2 + 338636^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38187537863 + ... + 38187537894.

Almost surely, 2^{1222001212112} is an apocalyptic number.

It is an amenable number.

1222001212112 is a deficient number, since it is larger than the sum of its proper divisors (1145626136386).

1222001212112 is an equidigital number, since it uses as much as digits as its factorization.

1222001212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76375075765 (or 76375075759 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222001212112 its reverse (2112121002221), we get a palindrome (3334122214333).

The spelling of 1222001212112 in words is "one trillion, two hundred twenty-two billion, one million, two hundred twelve thousand, one hundred twelve".