2022101221 has 4 divisors (see below), whose sum is σ = 2310972832. Its totient is φ = 1733229612.

The previous prime is 2022101219. The next prime is 2022101233. The reversal of 2022101221 is 1221012202.

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.

It is a cyclic number.

It is not a de Polignac number, because 2022101221 - 2¹ = 2022101219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022101251) 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, 144435795 + ... + 144435808.

It is an arithmetic number, because the mean of its divisors is an integer number (577743208).

Almost surely, 2^2022101221 is an apocalyptic number.

It is an amenable number.

2022101221 is a deficient number, since it is larger than the sum of its proper divisors (288871611).

2022101221 is an equidigital number, since it uses as much as digits as its factorization.

2022101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288871610.

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

The square root of 2022101221 is about 44967.7798095481. The cubic root of 2022101221 is about 1264.5450245057.

Adding to 2022101221 its reverse (1221012202), we get a palindrome (3243113423).

The spelling of 2022101221 in words is "two billion, twenty-two million, one hundred one thousand, two hundred twenty-one".