101000221221001 has 4 divisors (see below), whose sum is σ = 101000672985600. Its totient is φ = 100999769456404.

The previous prime is 101000221220981. The next prime is 101000221221037. The reversal of 101000221221001 is 100122122000101.

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 101000221221001 - 2¹³ = 101000221212809 is a prime.

It is a super-2 number, since 2×101000221221001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000221221091) 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, 225546781 + ... + 225994138.

It is an arithmetic number, because the mean of its divisors is an integer number (25250168246400).

Almost surely, 2^{101000221221001} is an apocalyptic number.

It is an amenable number.

101000221221001 is a deficient number, since it is larger than the sum of its proper divisors (451764599).

101000221221001 is an equidigital number, since it uses as much as digits as its factorization.

101000221221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451764598.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101000221221001 its reverse (100122122000101), we get a palindrome (201122343221102).

The spelling of 101000221221001 in words is "one hundred one trillion, two hundred twenty-one million, two hundred twenty-one thousand, one".