1002012020212 has 96 divisors (see below), whose sum is σ = 2190361824000. Its totient is φ = 391341404160.

The previous prime is 1002012020201. The next prime is 1002012020213. The reversal of 1002012020212 is 2120202102001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002012020192 and 1002012020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002012020213) 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 31 ways as a sum of consecutive naturals, for example, 4029412 + ... + 4270852.

It is an arithmetic number, because the mean of its divisors is an integer number (22816269000).

Almost surely, 2^{1002012020212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002012020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095180912000).

1002012020212 is an abundant number, since it is smaller than the sum of its proper divisors (1188349803788).

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

1002012020212 is a wasteful number, since it uses less digits than its factorization.

1002012020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241769 (or 241767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002012020212 its reverse (2120202102001), we get a palindrome (3122214122213).

The spelling of 1002012020212 in words is "one trillion, two billion, twelve million, twenty thousand, two hundred twelve".