10222020101221 has 4 divisors (see below), whose sum is σ = 10760021159200. Its totient is φ = 9684019043244.

The previous prime is 10222020101219. The next prime is 10222020101231. The reversal of 10222020101221 is 12210102022201.

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 10222020101221 - 2¹ = 10222020101219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10222020101195 and 10222020101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222020101201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269000528961 + ... + 269000528998.

It is an arithmetic number, because the mean of its divisors is an integer number (2690005289800).

Almost surely, 2^{10222020101221} is an apocalyptic number.

It is an amenable number.

10222020101221 is a deficient number, since it is larger than the sum of its proper divisors (538001057979).

10222020101221 is an equidigital number, since it uses as much as digits as its factorization.

10222020101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538001057978.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10222020101221 its reverse (12210102022201), we get a palindrome (22432122123422).

The spelling of 10222020101221 in words is "ten trillion, two hundred twenty-two billion, twenty million, one hundred one thousand, two hundred twenty-one".