221405243200202 has 8 divisors (see below), whose sum is σ = 351643621553316. Its totient is φ = 104190702682432.

The previous prime is 221405243200187. The next prime is 221405243200277. The reversal of 221405243200202 is 202002342504122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 213971391873121 + 7433851327081 = 14627761^2 + 2726509^2 .

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, 3255959458793 + ... + 3255959458860.

Almost surely, 2^{221405243200202} is an apocalyptic number.

221405243200202 is a deficient number, since it is larger than the sum of its proper divisors (130238378353114).

221405243200202 is a wasteful number, since it uses less digits than its factorization.

221405243200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511918917672.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 221405243200202 its reverse (202002342504122), we get a palindrome (423407585704324).

The spelling of 221405243200202 in words is "two hundred twenty-one trillion, four hundred five billion, two hundred forty-three million, two hundred thousand, two hundred two".