1200000220002 has 12 divisors (see below), whose sum is σ = 2600000476710. Its totient is φ = 400000073328.

The previous prime is 1200000219983. The next prime is 1200000220021. The reversal of 1200000220002 is 2000220000021.

It is an interprime number because it is at equal distance from previous prime (1200000219983) and next prime (1200000220021).

It can be written as a sum of positive squares in only one way, i.e., 1199990984481 + 9235521 = 1095441^2 + 3039^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33333339427 + ... + 33333339462.

Almost surely, 2^{1200000220002} is an apocalyptic number.

1200000220002 is an abundant number, since it is smaller than the sum of its proper divisors (1400000256708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200000220002 is a wasteful number, since it uses less digits than its factorization.

1200000220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66666678897 (or 66666678894 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 1200000220002 its reverse (2000220000021), we get a palindrome (3200220220023).

The spelling of 1200000220002 in words is "one trillion, two hundred billion, two hundred twenty thousand, two".