2101021220305 has 8 divisors (see below), whose sum is σ = 2881400530752. Its totient is φ = 1440700265328.

The previous prime is 2101021220293. The next prime is 2101021220321. The reversal of 2101021220305 is 5030221201012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101021220305 - 2¹⁵ = 2101021187537 is a prime.

It is a super-2 number, since 2×2101021220305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30014588827 + ... + 30014588896.

It is an arithmetic number, because the mean of its divisors is an integer number (360175066344).

Almost surely, 2^{2101021220305} is an apocalyptic number.

It is an amenable number.

2101021220305 is a deficient number, since it is larger than the sum of its proper divisors (780379310447).

2101021220305 is an equidigital number, since it uses as much as digits as its factorization.

2101021220305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60029177735.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 2101021220305 its reverse (5030221201012), we get a palindrome (7131242421317).

The spelling of 2101021220305 in words is "two trillion, one hundred one billion, twenty-one million, two hundred twenty thousand, three hundred five".