12021212121002 has 64 divisors (see below), whose sum is σ = 21122864931840. Its totient is φ = 5024963174400.

The previous prime is 12021212120999. The next prime is 12021212121019. The reversal of 12021212121002 is 20012121212021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57936002 + ... + 58143122.

It is an arithmetic number, because the mean of its divisors is an integer number (330044764560).

Almost surely, 2^{12021212121002} is an apocalyptic number.

12021212121002 is a deficient number, since it is larger than the sum of its proper divisors (9101652810838).

12021212121002 is a wasteful number, since it uses less digits than its factorization.

12021212121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207847.

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

Adding to 12021212121002 its reverse (20012121212021), we get a palindrome (32033333333023).

The spelling of 12021212121002 in words is "twelve trillion, twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, two".