1212010311012 has 24 divisors (see below), whose sum is σ = 2874385110912. Its totient is φ = 397380429600.

The previous prime is 1212010310983. The next prime is 1212010311013. The reversal of 1212010311012 is 2101130102121.

It is a junction number, because it is equal to n+sod(n) for n = 1212010310982 and 1212010311000.

It is not an unprimeable number, because it can be changed into a prime (1212010311013) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 827875164 + ... + 827876627.

It is an arithmetic number, because the mean of its divisors is an integer number (119766046288).

Almost surely, 2^{1212010311012} is an apocalyptic number.

1212010311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212010311012 is an abundant number, since it is smaller than the sum of its proper divisors (1662374799900).

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

1212010311012 is a wasteful number, since it uses less digits than its factorization.

1212010311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655751859 (or 1655751857 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1212010311012 its reverse (2101130102121), we get a palindrome (3313140413133).

The spelling of 1212010311012 in words is "one trillion, two hundred twelve billion, ten million, three hundred eleven thousand, twelve".