1200021210002 has 8 divisors (see below), whose sum is σ = 1800048023436. Its totient is φ = 600005202192.

The previous prime is 1200021209987. The next prime is 1200021210053. The reversal of 1200021210002 is 2000121200021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1123640280361 + 76380929641 = 1060019^2 + 276371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417813 + ... + 2871560.

Almost surely, 2^{1200021210002} is an apocalyptic number.

1200021210002 is a deficient number, since it is larger than the sum of its proper divisors (600026813434).

1200021210002 is a wasteful number, since it uses less digits than its factorization.

1200021210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402812.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200021210002 its reverse (2000121200021), we get a palindrome (3200142410023).

The spelling of 1200021210002 in words is "one trillion, two hundred billion, twenty-one million, two hundred ten thousand, two".