221220302100002 has 8 divisors (see below), whose sum is σ = 331832314419996. Its totient is φ = 110609530626672.

The previous prime is 221220302099957. The next prime is 221220302100047. The reversal of 221220302100002 is 200001203022122.

It is an interprime number because it is at equal distance from previous prime (221220302099957) and next prime (221220302100047).

It can be written as a sum of positive squares in 2 ways, for example, as 201181061836561 + 20039240263441 = 14183831^2 + 4476521^2 .

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

It is a super-2 number, since 2×221220302100002² (a number of 29 digits) contains 22 as substring.

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, 309765833 + ... + 310479164.

Almost surely, 2^{221220302100002} is an apocalyptic number.

221220302100002 is a deficient number, since it is larger than the sum of its proper divisors (110612012319994).

221220302100002 is a wasteful number, since it uses less digits than its factorization.

221220302100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620423332.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 221220302100002 its reverse (200001203022122), we get a palindrome (421221505122124).

The spelling of 221220302100002 in words is "two hundred twenty-one trillion, two hundred twenty billion, three hundred two million, one hundred thousand, two".