200101202202221 has 8 divisors (see below), whose sum is σ = 207002526640920. Its totient is φ = 193199963295808.

The previous prime is 200101202202217. The next prime is 200101202202277. The reversal of 200101202202221 is 122202202101002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129833035024900 + 70268167177321 = 11394430^2 + 8382611^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 200101202202221 - 2² = 200101202202217 is a prime.

It is a super-2 number, since 2×200101202202221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200101202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200101202202721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16605326 + ... + 25998831.

It is an arithmetic number, because the mean of its divisors is an integer number (25875315830115).

Almost surely, 2^{200101202202221} is an apocalyptic number.

It is an amenable number.

200101202202221 is a deficient number, since it is larger than the sum of its proper divisors (6901324438699).

200101202202221 is a wasteful number, since it uses less digits than its factorization.

200101202202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42766143.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200101202202221 its reverse (122202202101002), we get a palindrome (322303404303223).

The spelling of 200101202202221 in words is "two hundred trillion, one hundred one billion, two hundred two million, two hundred two thousand, two hundred twenty-one".