101001200221 has 4 divisors (see below), whose sum is σ = 101100319200. Its totient is φ = 100902081244.

The previous prime is 101001200171. The next prime is 101001200227. The reversal of 101001200221 is 122002100101.

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 101001200221 - 2⁹ = 101001199709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001200198 and 101001200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001200227) 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, 49557961 + ... + 49559998.

It is an arithmetic number, because the mean of its divisors is an integer number (25275079800).

Almost surely, 2^101001200221 is an apocalyptic number.

It is an amenable number.

101001200221 is a deficient number, since it is larger than the sum of its proper divisors (99118979).

101001200221 is an equidigital number, since it uses as much as digits as its factorization.

101001200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99118978.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101001200221 its reverse (122002100101), we get a palindrome (223003300322).

The spelling of 101001200221 in words is "one hundred one billion, one million, two hundred thousand, two hundred twenty-one".