1212101020012 has 24 divisors (see below), whose sum is σ = 2145834161856. Its totient is φ = 599031118608.

The previous prime is 1212101020003. The next prime is 1212101020019. The reversal of 1212101020012 is 2100201012121.

It is a junction number, because it is equal to n+sod(n) for n = 1212101019974 and 1212101020001.

It is not an unprimeable number, because it can be changed into a prime (1212101020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3006798 + ... + 3386005.

It is an arithmetic number, because the mean of its divisors is an integer number (89409756744).

Almost surely, 2^{1212101020012} is an apocalyptic number.

It is an amenable number.

1212101020012 is a deficient number, since it is larger than the sum of its proper divisors (933733141844).

1212101020012 is a wasteful number, since it uses less digits than its factorization.

1212101020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393357 (or 6393355 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212101020012 its reverse (2100201012121), we get a palindrome (3312302032133).

The spelling of 1212101020012 in words is "one trillion, two hundred twelve billion, one hundred one million, twenty thousand, twelve".