200101102221021 has 4 divisors (see below), whose sum is σ = 266801469628032. Its totient is φ = 133400734814012.

The previous prime is 200101102220959. The next prime is 200101102221023. The reversal of 200101102221021 is 120122201101002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200101102221021 - 2⁴³ = 191305009198813 is a prime.

It is a super-2 number, since 2×200101102221021² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200101102221023) 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, 33350183703501 + ... + 33350183703506.

It is an arithmetic number, because the mean of its divisors is an integer number (66700367407008).

Almost surely, 2^{200101102221021} is an apocalyptic number.

It is an amenable number.

200101102221021 is a deficient number, since it is larger than the sum of its proper divisors (66700367407011).

200101102221021 is an equidigital number, since it uses as much as digits as its factorization.

200101102221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66700367407010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200101102221021 its reverse (120122201101002), we get a palindrome (320223303322023).

The spelling of 200101102221021 in words is "two hundred trillion, one hundred one billion, one hundred two million, two hundred twenty-one thousand, twenty-one".