1212211000010 has 16 divisors (see below), whose sum is σ = 2193055843176. Its totient is φ = 482423057088.

The previous prime is 1212210999977. The next prime is 1212211000051. The reversal of 1212211000010 is 100001122121.

It can be written as a sum of positive squares in 4 ways, for example, as 1209918601369 + 2292398641 = 1099963^2 + 47879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1212210999955 and 1212211000000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307665797 + ... + 307669736.

Almost surely, 2^{1212211000010} is an apocalyptic number.

1212211000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212211000010 is a deficient number, since it is larger than the sum of its proper divisors (980844843166).

1212211000010 is a wasteful number, since it uses less digits than its factorization.

1212211000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615335737.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1212211000010 its reverse (100001122121), we get a palindrome (1312212122131).

The spelling of 1212211000010 in words is "one trillion, two hundred twelve billion, two hundred eleven million, ten", and thus it is an aban number.