1002120021212 has 12 divisors (see below), whose sum is σ = 1753856178480. Its totient is φ = 501018255936.

The previous prime is 1002120021211. The next prime is 1002120021341. The reversal of 1002120021212 is 2121200212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002120021211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10384637 + ... + 10480692.

It is an arithmetic number, because the mean of its divisors is an integer number (146154681540).

Almost surely, 2^{1002120021212} is an apocalyptic number.

It is an amenable number.

1002120021212 is a deficient number, since it is larger than the sum of its proper divisors (751736157268).

1002120021212 is a wasteful number, since it uses less digits than its factorization.

1002120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20877340 (or 20877338 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002120021212 its reverse (2121200212001), we get a palindrome (3123320233213).

The spelling of 1002120021212 in words is "one trillion, two billion, one hundred twenty million, twenty-one thousand, two hundred twelve".