1002122121212 has 6 divisors (see below), whose sum is σ = 1753713712128. Its totient is φ = 501061060604.

The previous prime is 1002122121211. The next prime is 1002122121283. The reversal of 1002122121212 is 2121212212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002122121211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125265265148 + ... + 125265265155.

It is an arithmetic number, because the mean of its divisors is an integer number (292285618688).

Almost surely, 2^{1002122121212} is an apocalyptic number.

It is an amenable number.

1002122121212 is a deficient number, since it is larger than the sum of its proper divisors (751591590916).

1002122121212 is a wasteful number, since it uses less digits than its factorization.

1002122121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250530530307 (or 250530530305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1002122121212 its reverse (2121212212001), we get a palindrome (3123334333213).

The spelling of 1002122121212 in words is "one trillion, two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".