1212210122002 has 48 divisors (see below), whose sum is σ = 2017788645600. Its totient is φ = 541670630400.

The previous prime is 1212210121979. The next prime is 1212210122009. The reversal of 1212210122002 is 2002210122121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212210122009) 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 23 ways as a sum of consecutive naturals, for example, 217668274 + ... + 217673842.

It is an arithmetic number, because the mean of its divisors is an integer number (42037263450).

Almost surely, 2^{1212210122002} is an apocalyptic number.

1212210122002 is a deficient number, since it is larger than the sum of its proper divisors (805578523598).

1212210122002 is a wasteful number, since it uses less digits than its factorization.

1212210122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212210122002 its reverse (2002210122121), we get a palindrome (3214420244123).

The spelling of 1212210122002 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-two thousand, two".