200001220221101 has 4 divisors (see below), whose sum is σ = 215385929468892. Its totient is φ = 184616510973312.

The previous prime is 200001220221053. The next prime is 200001220221163. The reversal of 200001220221101 is 101122022100002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63803590921225 + 136197629299876 = 7987715^2 + 11670374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200001220221101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001220221701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7692354623876 + ... + 7692354623901.

It is an arithmetic number, because the mean of its divisors is an integer number (53846482367223).

Almost surely, 2^{200001220221101} is an apocalyptic number.

It is an amenable number.

200001220221101 is a deficient number, since it is larger than the sum of its proper divisors (15384709247791).

200001220221101 is a wasteful number, since it uses less digits than its factorization.

200001220221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15384709247790.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200001220221101 its reverse (101122022100002), we get a palindrome (301123242321103).

The spelling of 200001220221101 in words is "two hundred trillion, one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred one".