221201100200002 has 8 divisors (see below), whose sum is σ = 357324854169276. Its totient is φ = 102092815476912.

The previous prime is 221201100199903. The next prime is 221201100200033. The reversal of 221201100200002 is 200002001102122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 221107115648241 + 93984551761 = 14869671^2 + 306569^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253867311513 + ... + 4253867311564.

Almost surely, 2^{221201100200002} is an apocalyptic number.

221201100200002 is a deficient number, since it is larger than the sum of its proper divisors (136123753969274).

221201100200002 is a wasteful number, since it uses less digits than its factorization.

221201100200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507734623092.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221201100200002 its reverse (200002001102122), we get a palindrome (421203101302124).

The spelling of 221201100200002 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred million, two hundred thousand, two".