1222212012036 has 48 divisors (see below), whose sum is σ = 2855786492160. Its totient is φ = 406838798080.

The previous prime is 1222212011987. The next prime is 1222212012037. The reversal of 1222212012036 is 6302102122221.

It is a junction number, because it is equal to n+sod(n) for n = 1222212011997 and 1222212012015.

It is not an unprimeable number, because it can be changed into a prime (1222212012037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38455960 + ... + 38487728.

It is an arithmetic number, because the mean of its divisors is an integer number (59495551920).

Almost surely, 2^{1222212012036} is an apocalyptic number.

It is an amenable number.

1222212012036 is an abundant number, since it is smaller than the sum of its proper divisors (1633574480124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222212012036 is a wasteful number, since it uses less digits than its factorization.

1222212012036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36124 (or 36122 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1222212012036 its reverse (6302102122221), we get a palindrome (7524314134257).

The spelling of 1222212012036 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, twelve thousand, thirty-six".