1200002120002 has 64 divisors (see below), whose sum is σ = 2104569298944. Its totient is φ = 502514400960.

The previous prime is 1200002119937. The next prime is 1200002120033. The reversal of 1200002120002 is 2000212000021.

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, 255154383 + ... + 255159085.

It is an arithmetic number, because the mean of its divisors is an integer number (32883895296).

Almost surely, 2^{1200002120002} is an apocalyptic number.

1200002120002 is a deficient number, since it is larger than the sum of its proper divisors (904567178942).

1200002120002 is a wasteful number, since it uses less digits than its factorization.

1200002120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1200002120002 its reverse (2000212000021), we get a palindrome (3200214120023).

It can be divided in two parts, 12000021 and 20002, that multiplied together give a palindrome (240024420042).

The spelling of 1200002120002 in words is "one trillion, two hundred billion, two million, one hundred twenty thousand, two".