1220222100002 has 16 divisors (see below), whose sum is σ = 1893501603000. Its totient is φ = 589056088320.

The previous prime is 1220222099959. The next prime is 1220222100011. The reversal of 1220222100002 is 2000012220221.

It can be written as a sum of positive squares in 4 ways, for example, as 1220209646161 + 12453841 = 1104631^2 + 3529^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1220222100002.

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, 1912874 + ... + 2469722.

Almost surely, 2^{1220222100002} is an apocalyptic number.

1220222100002 is a deficient number, since it is larger than the sum of its proper divisors (673279502998).

1220222100002 is a wasteful number, since it uses less digits than its factorization.

1220222100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594661.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1220222100002 its reverse (2000012220221), we get a palindrome (3220234320223).

It can be divided in two parts, 1220 and 222100002, that added together give a palindrome (222101222).

The spelling of 1220222100002 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred thousand, two".