12001221101002 has 16 divisors (see below), whose sum is σ = 20677956013440. Its totient is φ = 5117271940368.

The previous prime is 12001221100951. The next prime is 12001221101011. The reversal of 12001221101002 is 20010112210021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2175708102 + ... + 2175713617.

It is an arithmetic number, because the mean of its divisors is an integer number (1292372250840).

Almost surely, 2^{12001221101002} is an apocalyptic number.

12001221101002 is a deficient number, since it is larger than the sum of its proper divisors (8676734912438).

12001221101002 is a wasteful number, since it uses less digits than its factorization.

12001221101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351421925.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001221101002 its reverse (20010112210021), we get a palindrome (32011333311023).

The spelling of 12001221101002 in words is "twelve trillion, one billion, two hundred twenty-one million, one hundred one thousand, two".