1202121102012 has 24 divisors (see below), whose sum is σ = 2805456525312. Its totient is φ = 400634564400.

The previous prime is 1202121101989. The next prime is 1202121102019. The reversal of 1202121102012 is 2102011212021.

It is a junction number, because it is equal to n+sod(n) for n = 1202121101982 and 1202121102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121102019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8989564 + ... + 9122307.

It is an arithmetic number, because the mean of its divisors is an integer number (116894021888).

Almost surely, 2^{1202121102012} is an apocalyptic number.

1202121102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202121102012 is an abundant number, since it is smaller than the sum of its proper divisors (1603335423300).

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

1202121102012 is a wasteful number, since it uses less digits than its factorization.

1202121102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117409 (or 18117407 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202121102012 its reverse (2102011212021), we get a palindrome (3304132314033).

The spelling of 1202121102012 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred two thousand, twelve".