101002220221 has 4 divisors (see below), whose sum is σ = 115431108832. Its totient is φ = 86573331612.

The previous prime is 101002220219. The next prime is 101002220227. The reversal of 101002220221 is 122022200101.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122022200101 = 503 ⋅242588867.

It is a cyclic number.

It is not a de Polignac number, because 101002220221 - 2¹ = 101002220219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002220227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214444295 + ... + 7214444308.

It is an arithmetic number, because the mean of its divisors is an integer number (28857777208).

Almost surely, 2^101002220221 is an apocalyptic number.

It is an amenable number.

101002220221 is a deficient number, since it is larger than the sum of its proper divisors (14428888611).

101002220221 is an equidigital number, since it uses as much as digits as its factorization.

101002220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428888610.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101002220221 its reverse (122022200101), we get a palindrome (223024420322).

The spelling of 101002220221 in words is "one hundred one billion, two million, two hundred twenty thousand, two hundred twenty-one".