21007112120002 has 16 divisors (see below), whose sum is σ = 31575505341600. Its totient is φ = 10481956804672.

The previous prime is 21007112119997. The next prime is 21007112120051. The reversal of 21007112120002 is 20002121170012.

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, 80308 + ... + 6482335.

It is an arithmetic number, because the mean of its divisors is an integer number (1973469083850).

Almost surely, 2^{21007112120002} is an apocalyptic number.

21007112120002 is a deficient number, since it is larger than the sum of its proper divisors (10568393221598).

21007112120002 is a wasteful number, since it uses less digits than its factorization.

21007112120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565937.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 21007112120002 its reverse (20002121170012), we get a palindrome (41009233290014).

The spelling of 21007112120002 in words is "twenty-one trillion, seven billion, one hundred twelve million, one hundred twenty thousand, two".